Attributes

Brand	-
Category	Musical Instruments/Guitars/Pianos/Accessories / Rosin and Other Low-Value Consumables
Origin	-
Brand	OTTO
Model Number	MR-15
Country of Origin	Germany
Compatible Instruments	Violin, Viola, Cello, Erhu
Shape	Rectangular Block
Color	Dark Amber
Weight	30g
Texture	Smooth and Hard
Packaging	Protective Cloth Pouch Included
Recommended For	Professional and Student Musicians

6 reviews

Anonymous

Mar 13, 2026

Rating: 5/5

My go-to rosin for years

I have been using OTTO rosin for over a decade. This MR-15 block is reliable, affordable, and delivers a warm tone suitable for orchestral playing.

Anonymous

Mar 12, 2026

Rating: 5/5

Excellent grip for my cello

This German rosin provides fantastic grip without being too sticky. The sound quality on my cello has improved significantly since switching to OTTO.

Anonymous

Mar 11, 2026

Rating: 5/5

Classic German quality

You can tell this is authentic German craftsmanship. No dust, easy to apply, and consistent performance every time I practice.

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for Erhu players

I was skeptical about using this on my Erhu, but it works beautifully. It creates just the right amount of friction for traditional pieces.

Anonymous

Mar 01, 2026

Rating: 4/5

Great value for money

Works well on my violin. It lasts a long time and produces a clear tone. The only reason for 4 stars is that the packaging was slightly crushed upon arrival.

Anonymous

Mar 01, 2026

Rating: 3/5

Good but hard to break in

The rosin seems high quality, but it took quite a while to break in and start transferring to the bow hair effectively. Once it did, the sound was good.

5 FAQ

Q: Is this rosin suitable for a beginner violin student?

A: Yes, the OTTO MR-15 is excellent for students as it provides consistent grip and helps produce a clear tone easily.

Q: Can I use this on a viola as well?

A: Absolutely, this rosin is formulated to work effectively on violins, violas, cellos, and even Erhus.

Q: How long does one block typically last?

A: With regular daily practice, one block usually lasts between 6 to 12 months depending on playing intensity and bow hair condition.

Q: Does this product come with a cloth for application?

A: Yes, each rectangular block includes a protective cloth pouch which can also be used to wrap the rosin or clean excess dust.

Q: Is this rosin hypoallergenic?

A: While made from natural pine resin, we recommend testing a small amount first if you have known sensitivities to colophony.

Explore your interests

Genelec Speaker Desktop Stand 8000-406 (Single Unit) - Compatible with 8010, 8020, 8030 Models

$426.00

Qingge GB101 Double Bass Bow, German and French Style Brazilwood Contrabass Bow

$276.00

Dear You Two-Part Chorus Staff Notation Accompaniment Standard Score Chorus Numbered Notation Piano Accompaniment Audio Part Demo Singing

$28.00

Xuanhe Thickened Cowhide Flat Drum with Pine Wood Shell; Large War Drum and Gong Drum in Big and Small Sizes; Durable Cowhide Drum Includes Drumsticks

$203.00

TOM TUC680M Ukulele Solid Wood ukulele Small Guitar Advanced Ukelele Adult Female 23 inch

$755.00

Bronze Hand Gong, Small Copper Gong 21 22 Low Pitch Black Hand Gong 28 30, Various Sizes Su Gong, Wu Gong, Hu Yin Gong, High Pitch Copper Gong

$270.00

Kapell KPE Violin Shoulder Rest - Professional Lightweight Foam Shoulder Pad for 4/4 and 3/4 Violins with Adjustable Width and Height

$268.00

SUZUKI Japan SCX-64 56 48 Imported 16-Hole Chromatic Harmonica for Beginners and Entry-Level Performance

$1,028.00

Ancient Style Membrane-Free Bamboo Flute - Professional Instrument for Beginners and Adults, Yunyi Bitter Bamboo Transverse Flute in E and C Keys

$84.10

Drum Cymbal Muting Ring Silent Pad - 12, 14, 16, 18, 20 inch Cymbal Mute Strip

$6.63

Pure Copper Handmade Thickened Great Han Horn Extendable Horn Suona Brass Professional Tone Red and White Events Ethnic Trombone

$530.00

Ancient Instrument Meteorite Xun Eight-Hole Practice Xun Craft Xun 8-Hole Craft Xun Free Shipping Includes Fingering Chart Self-Study Gift Pack

$19.90

Saige Premium Solid Wood Djembe with Goat Skin - Professional Performance Drums for Adults and Children (8", 10", 12")

$254.00

Bingsheng Shoe Materials 707 Glue, Shoe Repair Adhesive, Specialized Glue for Shoe Leather, Fast-Acting Glue, 3-Second Glue, Quick-Drying

$2.00

Copper Cymbals Large/Small Jing Cymbals Resonant Copper Water Cymbals Nao Large Hat Cymbals Waist Drum Cymbals Snare Drum Cymbals Gongs and Cymbals

$137.00

German Kazoo Professional Performance Grade New Design Metal Wind Instrument - Premium Quality

$63.70

Morgan Classical Guitar Strings Set 1-6 - Silver-Plated High Tension Nylon Strings and Accessories

$48.30

6-Hole Ocarina, Professional Beginner Alto AC Tuning Instrument for Children, Students, and Adults

$9.80

Elixir Electric Guitar Strings Single String Universal 09 10 Loose Guitar Strings 1st & 2nd String 11 Elixir

$14.40

Clarinet Instrument, Black Pipe, Bb Tuning Black Pipe, TOYAMA Musical Instruments

$7,805.00

SOLO Guitar Bow - Picasso Bow for Folk and Classical Guitar Performance, Tuning, and Creative Playing Techniques

$172.00

USA-Made D'Addario Electric Guitar Strings EXL120 Full Set of 6 Strings, Also Available in EXL110

$45.90

Dunhuang Professional Concert Guzheng 698T/5698JT Rosewood, Elegant Lady 698JM Blooming Dreams

$12,495.00

90CM Young Pioneers Drum Corps Military Band Conductor Baton Command Stick Conductor Staff

$120.00

22-Tube Pan Flute in G Key - Professional Performance Grade for Children, Adults, and Students, Beginner-Friendly Traditional Instrument

$100.00

Auto-Tune Assistant: Permanent Automatic Pitch Correction Base Query, Kugou Pitch Shift Software, NetEase Song Key Changer

$5.00

ART S8-3WAY art s8 8-Input 1-to-3 Passive Microphone Splitter, Passive Audio Distributor

$1,990.00

CIOKS DC7 Adjustable SOL Multi-Output Isolated Power Supply Kit for Guitar Pedals - Quiet, High Current QC KPP

$649.96

Shi Ming Ultimate Keyboardist Core Course: Improvisational Accompaniment/Pop Jazz/Piano Harmony Videos

$697.00

Premium Boxwood Violin Accessory Set - Pegs, Tailpiece, Chinrest, and Endpin with Black Inlay (4/4 Size)

$236.00

Ibanez Official Flagship Store RGA42EX-BAM Electric Guitar, 24 Frets, Fixed Bridge

$3,111.00

Billiard Cue Tip Glue, Quick-Set 502 Adhesive, O'Min Tip Attachment Glue

$3.00

Youth Bb Trumpet Plastic Mouthpiece for School Bands, Drum Corps, and Young Pioneers - Drop-Resistant Accessory

$4.08

*Sanxian Langyue Pipa Picks - Pink Transparent Celluloid for Professional Performance (Adults & Children)

$55.00

Beijing Xinghai Xipi Jing Erhu Instrument 87022X African Rosewood Raw Polished Popular Performance Erhu

$816.50

4/4 Violin/Cello Bow Accessories: Frog Pre-Haired with Screw, Tailpiece Fitting

$4.25

Sheet Music Transcription Service: Full House & Fate Arrangements for Sax, Clarinet, Flute, Violin & Accompaniment

$12.00

Baihua Reed Membrane Liquid Glue, Super Value Gift Pack: 5 Packs of Baihua Reed Membrane + 1 Bottle of Liquid Glue, Free Shipping

$8.80

432Hz & 528Hz Tuning Fork Resonance Sound Healing Instrument, Ear Cleaning Stress Relief Relaxation Demagnetization Mindfulness Meditation Tool

$89.00

Elixir Electric Guitar Strings, 3-Pack Sets, NANOWEB Coated Strings, Models 09 and 010

$202.50