Attributes

Brand	-
Category	Musical Instruments/Guitars/Pianos/Accessories / Rosin and Other Low-Value Consumables
Origin	-
Brand	OTTO
Model Series	MR15 / MR25 / MR35 / MR50
Origin	Germany
Compatible Instruments	Violin, Viola, Cello, Erhu
Dust Level	Dust-Free Formula
Color	Light Amber to Dark Brown (varies by model)
Texture	Smooth and Hard
Weight per Cake	Approx. 28g
Packaging	Protective Cloth Pouch Included
Ideal For	Professional and Student Musicians

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Standard for a reason

I have been using OTTO rosin for over a decade. This dust-free version is even better than the old formula. It lasts a long time and ensures consistent performance across all four strings of my violin.

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for my Erhu

Finding good rosin for the Erhu can be tricky, but this works beautifully. The MR25 gives just the right amount of friction without making the sound too harsh. Very satisfied with this purchase.

Anonymous

Mar 22, 2026

Rating: 4/5

Good value for money

Solid product. The packaging was secure, and the cloth pouch is a nice touch to keep things tidy in my case. It's not the cheapest option, but the longevity makes it worth the price.

Anonymous

Mar 15, 2026

Rating: 5/5

Clearer tone production

My viola sounds much clearer now. The rosin applies evenly and doesn't clump up. I appreciate that it is genuinely dust-free as advertised, keeping my varnish safe.

Anonymous

Mar 15, 2026

Rating: 5/5

Excellent grip without the mess

I switched to the OTTO MR50 for my cello and the difference is night and day. It provides incredible grip on the bow hair, yet my instrument stays remarkably clean. No more white dust clouds after a long practice session.

Anonymous

Mar 05, 2026

Rating: 4/5

Great quality, hard to apply initially

The rosin itself is top-notch German quality. It took a few tries to get it to bite on my new bow hair because it is quite hard, but once it did, the tone became rich and warm. Highly recommend for serious players.

5 FAQ

Q: What is the main difference between MR35 and MR50?

A: The primary difference lies in the hardness and grip level. MR50 is harder and provides a stronger grip, ideal for soloists or lower-pitched instruments like cellos, while MR35 is slightly softer for a warmer tone.

Q: How often do I need to reapply this rosin?

A: Frequency depends on playing time, but generally, applying rosin every 4-6 hours of play is sufficient. Since this is a hard rosin, a little goes a long way.

Q: Which model number should I choose for a beginner violin student?

A: For beginner violinists, we typically recommend the OTTO MR15 or MR25. They offer a balanced grip that helps produce sound easily without being too aggressive on the strings.

Q: Is this rosin suitable for synthetic core strings?

A: Yes, the OTTO MR series is versatile and works excellently with both gut and synthetic core strings, providing reliable traction regardless of the string type.

Q: Does the package include the cloth for wiping the instrument?

A: Yes, each cake of rosin comes wrapped in a protective soft cloth pouch, which can also be used to gently wipe excess residue from your instrument.

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