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.

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