Attributes

Brand	-
Category	Stationery, Educational Electronics & Office Supplies / Stationery & Handmade Goods
Origin	-
Material	High-quality Polypropylene (PP)
Dimensions	7.5 x 20.5 cm
Thickness	Thickened 0.12mm for extra durability
Pack Quantity	100 sleeves per pack
Transparency	Crystal clear for easy viewing
Closure Type	Self-adhesive seal strip
Acid-Free	Yes, archival safe for long-term storage
Compatibility	Fits standard miniature sheets and square blocks
UV Protection	Provides basic UV resistance to prevent fading
Country of Origin	Manufactured in China

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect fit for my miniature sheets

These sleeves are exactly what I needed. The dimensions are spot on for my collection of square blocks, and the thickened material feels very premium compared to cheaper alternatives.

Anonymous

Mar 29, 2026

Rating: 4/5

Great quality, slightly tight seal

The plastic is crystal clear and very sturdy. My only minor complaint is that the adhesive strip can be a little tricky to align perfectly on the first try, but once sealed, it's very secure.

Anonymous

Mar 24, 2026

Rating: 5/5

Archival safe and durable

I was worried about acid damage over time, but these are clearly labeled as acid-free. They feel thick enough to protect valuable stamps from bending or creasing during handling.

Anonymous

Mar 21, 2026

Rating: 5/5

Best sleeves for square blocks

I have tried many brands, and these 7.5x20.5cm sleeves are the best fit for international miniature sheets. The self-adhesive closure is strong and doesn't yellow over time.

Anonymous

Mar 20, 2026

Rating: 4/5

Good protection, very clear

The transparency is amazing; you can see every detail of the stamp without removing it. I deducted one star because a couple of sleeves in my pack had minor dust inside, but overall very satisfied.

Anonymous

Mar 15, 2026

Rating: 5/5

Excellent value for 100 pack

As someone just starting their collection, getting 100 high-quality sleeves at this price point is fantastic. They make my albums look so much more professional.

5 FAQ

Q: Are these sleeves reusable if I unseal them?

A: While the self-adhesive strip is strong, it is generally designed for one-time sealing to ensure maximum protection. Re-sealing may result in a weaker bond or potential damage to the stamp.

Q: Do these contain PVC?

A: No, these sleeves are made from Polypropylene (PP), which is PVC-free, acid-free, and safe for long-term archival storage of your philatelic items.

Q: Will these fit a standard US souvenir sheet?

A: These sleeves are designed specifically for miniature sheets and square blocks measuring up to 7.5 x 20.5 cm. Please measure your specific souvenir sheet before purchasing, as US sizes can vary.

Q: Can I write on these sleeves with a permanent marker?

A: Yes, the surface accepts permanent marker ink well for labeling purposes. We recommend testing on a spare sleeve first to ensure the ink does not smear onto the stamp inside.

Q: Is there a bulk discount for buying more than 5 packs?

A: Yes, we offer tiered pricing for bulk orders. Please add 5 or more packs to your cart to see the automatic discount applied at checkout.

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