Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Stationery & Handmade Goods
Origin	-
Material	High-Transparency OPP (Oriented Polypropylene)
Dimensions	4.5 x 6.5 cm (approx. 1.77 x 2.56 inches)
Package Quantity	100 Sleeves per Pack
Design Style	Receipt-Style with Foldable Flap
Closure Type	Self-Adhesive Seal (No Glue Required)
Transparency Level	Crystal Clear for Easy Viewing
Acid-Free Status	Yes, Safe for Long-Term Archival Storage
Thickness	0.04mm Durable Film
Primary Use	Philately, Stamp Collection, and Paper Craft Protection
Country of Origin	Manufactured in China

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect fit for standard stamps

These sleeves are exactly what I needed for my collection. The 4.5x6.5cm size fits most of my older receipts and larger commemorative stamps perfectly. The transparency is excellent, allowing me to see the details without removing them.

Anonymous

Mar 29, 2026

Rating: 5/5

Archival safe and clear

I was worried about acidity damaging my vintage items, but these seem to be high quality and safe. They stay clear over time and don't yellow. Highly recommend for serious collectors.

Anonymous

Mar 13, 2026

Rating: 3/5

Good but size is specific

The quality is good, but make sure you measure your items. They are a bit snug for thicker mounted stamps, but perfect for loose flat stamps or small documents as described.

Anonymous

Mar 11, 2026

Rating: 5/5

Excellent value for 100 pack

You get a lot of sleeves for the price. I've organized three entire albums worth of stamps using just one pack. The receipt style makes it easy to slide items in and out if needed before sealing.

Anonymous

Mar 11, 2026

Rating: 4/5

Great quality, slightly tricky seal

The material feels very durable and clear. I use these for protecting handmade paper crafts. The adhesive strip works well once you get the hang of it, though it requires a firm press to seal completely.

Anonymous

Mar 11, 2026

Rating: 5/5

Professional look for displays

I use these to protect small art prints I sell at markets. They give a very professional, clean look and keep the items dust-free. The high transparency really lets the colors pop.

5 FAQ

Q: Can I reopen the sleeve after sealing it?

A: While the self-adhesive seal is strong, it is possible to carefully peel it open if necessary. However, repeated opening and closing may reduce the adhesive effectiveness.

Q: Will a stamp mounted on a cardstock backing fit inside?

A: It depends on the thickness. These sleeves are designed for flat items up to 0.04mm thick. If your cardstock backing is very thin, it might fit, but thick mounts may not slide in easily.

Q: Are these sleeves acid-free and safe for long-term storage?

A: Yes, these OPP sleeves are made from archival-safe materials that are acid-free, ensuring your stamps and documents remain preserved without yellowing or degradation over time.

Q: Do these come with individual backing cards?

A: No, this package includes only the 100 transparent protective sleeves. Backing cards or album pages are sold separately.

Q: What is the best way to seal these to avoid air bubbles?

A: Insert your item fully, press the sleeve flat to push out excess air from the bottom up, and then firmly run your finger along the adhesive strip to create a tight, bubble-free seal.

Explore your interests

[10 Boxes] M&G Staples 24/6 Universal No. 12 Stapler Pins, Uniform Binding Nails, Office Stationery, Small Stainless Steel Staples

$5.40

Deli TE28 Voice Calculator with Real Human Pronunciation, Large Display, for Business, Office, and Accounting Use SJJF-1

$59.90

Bulk Pack | GuGu WanWu Concentric Circle Dual Blush Gradient Soft Light Round Stickers for Journaling, Basic Decorative Marking and Background

$4.25

New A5 Waltz Graduation Classmate Album Ins High-Aesthetic Minimalist Niche Junior and Senior High School Student Message Memorial Book

$11.80

Tengzhou Dongfang Hailida ZQ3050 Mechanical Radial Drill Press Gears z20/39 Teeth, z29/47 Teeth, z31/58 Teeth

$140.10

Classical Cute Creative Bookmarks, Chinese Ancient Style Poetry Cards, Rewards for Elementary Students, Blank Paper Back-to-School Gifts

$7.48

Custom Record Book Table Creation Printing Account Book Register Appointment Book Table Book Detail Sheet Printing Customization Various Account Books Powerful Manufacturer

$4.25

Inozto Japanese-Style Mini Tape Dispenser for 1.8cm Washi and Clear Tape, Weighted Base Design

$27.20

Ou Kai Brush: 9 Wolf Hair 1 Goat Hair Mixed Brush, Wolf/Goat Hair for Regular Script, Liu Style, Wang Xizhi Running Script, Pure Wolf Mixed Hair

$2.80

Wing Sung Little Steel Cannon Fountain Pen with Bent Nib for Calligraphy, Sketching, Art Signatures, and Practice - Ideal for 3rd Grade Elementary Students

$13.40

Custom Desk Mat Board Compatible with Old Guangming Yuandi Study Desks - Winner/Wisdom/Benevolence Solid Wood A Series Custom Mats

$18.00

Marie's Sketch Tool Set for Beginners, Basic Sketching Pencils (2B, 4B, 6B), Complete Art Student Drawing Kit with Easel and Professional Sketch Pens

$20.00

Zuohui Paper Palette: Tear-Off Mixing Paper, No-Wash Mixing Book, Disposable Palette for Watercolor, Acrylic, and Oil Painting, Peel-Off Mixing Board

$5.60

Red Fat Professional Watercolor Brush Set: Round Tip Liner Brushes, Nylon Brushes for Art Students; Black Swan Series Single Pack Available

$2.45

Classic Complete Collection: Colored Pencil Animals - Beginner Sketching Tutorial, Hand-Drawn Speed Sketching & Tracing Guide for Adults (Cats & Dogs), Edited by Yang Jianfei

$21.90

HITOTO Oil Pastel Set Super Soft Heavy Color 36 Colors 48 Colors Macaron Series Middle School Kindergarten Art Drawing Dedicated White Oil Chalk Soft Crayon Painting Paper Scraper Tool Complete Set

$18.58

Mengjin Notebook New High Aesthetic Extra Thick Student Special Minimalist Instagram Style Series Classroom Notes Exam

$2.05

Art Portfolio Bag, Black Thickened Canvas Large Capacity Backpack for Art Exams and Sketching, Dedicated for Art Students, Portable Multi-Function Double-Shoulder Drawing Board Bag, 4K Art Bag

$23.49

The Tale of Outcasts: Hero Exploration Acrylic Standee, Haruka Katsuragi Acrylic Figure

$14.20

Home Picture Book Stand, Solid Wood Bookshelf, Storage Rack for Books and Toys, Floor-Standing Display Shelf

$1.00

Jiangzuo Retro Envelope and Letter Paper Set, Hair Brush Soft Pen Fountain Pen Gold-Flecked Hot-Stamped Wannian Red Antique Handmade Xuan Paper Blank Thickened Republic Era Small Envelope Custom Invitation Literary Prop Small Regular Script Love Letter

$6.87

Pure Cotton Red Scarf for Elementary Students, Fade-resistant Universal Wrinkle-resistant Small Size for Grades 1-2, Thickened Large Size for Junior High, High-quality Full Cotton Young Pioneer Scarf for Children and Schools

$14.10

Shanjiu Thickened Plastic Snap Button File Bag Transparent A4 with Label Archive Stationery Bag Student Storage Custom Logo

$5.67

Marie's Chinese Painting Pigment 12-Color 24-Color Ink Wash Painting Tool Set for Elementary Students and Beginners, Gongbi Painting Pigments

$16.50

Dragon Ball Card Binder Nine-Grid Storage Album Large Capacity Pikachu Bag Cards Super Saiyan Card Sleeves

$34.70

33cm Kraft Cardboard with Colored Borders, Square with Circular Inner Cutout, Thickened Antique-Style Hard Cardboard for Children's Art and Drawing

$10.60

B5 Fun Dot Grid Pen Control Practice Copybook - Complete Preschool Workbook Set for Ages 3-6, Daily Training Sheets

$7.48

Small Blackboard for Home Teaching - Erasable Children's Drawing Board, Writing Board, Wooden Chalkboard with Magnetic Easel for Elementary Students

$40.00

Loose-Leaf Card Binder for Yu-Gi-Oh!, Pokémon, Trading Cards, and Sports Cards; Card Storage Album with Pockets

$30.10

New Zhaorui Instrument Oxygen, Methane, and CO2 Sensor Cover Alarm Connector Gas Head QT-2

$57.40

Zhongbai Paint Marker SP-110 Oil-Based Touch-Up Pen DIY Album Graffiti Pen White Marker Pen Touch-Up Pen

$2.33

Winsor & Newton Artist Oil Paints Beginner Painting Single Tube 45ml 170ml Oil Color Sets 12 Colors 24 Colors Sky Blue Medium Yellow Magenta

$7.50

touchmark Antique-Style Raw Edge Paper for Calligraphy - Unlined Xuan Paper for Brush Writing Practice, Handmade Bamboo Pulp Yuanshu Paper, Thickened Semi-Sized Calligraphy Work Paper

$11.80

Duosuoduoxi Multifunctional 4K Art Portfolio Bag - Thickened Wear-Resistant Large Capacity Backpack for Art Exams, Sketching, Plein Air, and Art Storage

$66.50

Inspirational Student Calligraphy Wall Art for Classrooms - Handwritten Original Scroll Decoration for Living Rooms and Studies

$38.00

Mao Taizi Reading Stand Kids Desktop Book Holder Multifunctional Student Reading Bracket Learning Artifact Book Clip Fixed Book Clamp Portable Desktop Book Stand

$9.90