Bonmusica Violin Shoulder Rest – Adjustable, Made in Germany (1/4–4/4) with a curved, foam-padded top and adjustable metal hardware.
A curved, adjustable Bonmusica Violin Shoulder Rest – Adjustable, Made in Germany (1/4–4/4) with foam padding attached to the back of a violin.
A person plays a violin with a Bonmusica Violin Shoulder Rest – Adjustable, Made in Germany (1/4–4/4), showing a 63mm measurement between the instrument and the support frame.

Bonmusica

Bonmusica Violin Shoulder Rest – Adjustable, Made in Germany (1/4–4/4)

$72.50
8 reviews
8 reviews

✓ Recommended by our luthiers. 45-day returns on unused items.

Size:3/4
Quantity:
Pickup available at 403 East Putnam Ave Usually ready in 24 hours

Bonmusica Violin Shoulder Rest – Adjustable, Made in Germany (1/4–4/4)

3/4

403 East Putnam Ave

Pickup available, usually ready in 24 hours

403 East Putnam Ave
Cos Cob CT 06807
United States

2036619500

Complete your setup

Tick any add-ons to add them with your Bonmusica in one step. Sized string sets match the rest size you choose. Full-size (4/4) sets appear only with the 4/4 rest.

Strings

Dominant Violin Strings The benchmark synthetic set: warm, focused and reliable.Size 3/4
$92.50 $84.25
Helicore Violin Strings by D’Addario Steel core: clear, warm tone and stable pitch.Size 3/4
$59.99

Mutes

Tourte Original Round Violin Mute Classic rubber orchestra mute.
$2.99
Artino Violin / Viola Practice Mute Heavy practice mute for quiet, late-hour practice.
$19.99

Care & polish

Cleaning Cloth Soft, non-abrasive. Lifts rosin dust and fingerprints.
$6.95
KRUTZ Instrument Polish Natural cleaner and polish for fine wooden instruments.
$9.99 $8.99

Orders of $99+ ship free.

Violin, Viola, Cello & Bass Size Charts

Use the charts below to find the usual size for a violin, viola, cello or double bass by age, height or arm measurement. If you'd like a personal recommendation, the free FitFinder tool further down the page gives you a recommended size and fit checklist in a few minutes.

Children grow at different rates, so measurements beat age. When a player falls between two sizes, choose the smaller one.

Violin Size Chart

How to measure: hold the left arm straight out to the side, palm up, and measure from the side of the neck to the middle of the palm.

Violin size Typical age Arm length (in) Arm length (cm)
4/4 (full) 11+ and adults 23+ 58+
3/4 9–11 22–23 56–58
1/2 7–9 20–22 51–56
1/4 6–7 18.5–20 47–51
1/8 5–6 17.5–18.5 44–47
1/10 4–5 16.5–17.5 42–44
1/16 3–4 15.5–16.5 39–42
Shop violinsRent a violin

Viola Size Chart

Violas are measured by body length in inches. Measure the arm the same way as for violin.

Viola size Typical age Arm length (in) Arm length (cm)
16"–16.5" Adults, larger hands 26+ 66+
15.5" Adults 25–26 64–66
15" 12+ 24–25 61–64
14" 10–12 23–24 58–61
13" 8–10 22–23 56–58
12" 7–8 20–22 51–56
Shop violasRent a viola

Cello Size Chart

Size a cello by the player's height. When seated, the knees should sit just below the lower bouts and the C-string peg should be near the left ear.

Cello size Typical age Player height Height (cm)
4/4 (full) 12+ and adults 5'0" and up 152+
7/8 Smaller teens and adults Around 5'0" (between 3/4 and 4/4) About 152
3/4 10–12 4'6"–5'0" 137–152
1/2 8–10 4'0"–4'6" 122–137
1/4 6–8 3'6"–4'0" 107–122
1/8 and 1/10 4–6 Under 3'6" Under 107
Shop cellosRent a cello

Double Bass Size Chart

Size a double bass by the player's height while standing. Most school players and many adults play a 3/4 bass, which is considered the standard full size.

Bass size Typical age Player height Height (cm)
3/4 (standard) 13+ and adults 5'0" and up 152+
1/2 9–13 4'6"–5'0" 137–152
1/4 7–9 4'0"–4'6" 122–137
1/8 5–7 Under 4'0" Under 122
Shop double bassesRent a bass

These charts are general guides. A teacher or one of our string specialists can confirm the fit, and rentals can be exchanged for the next size as your player grows.

Get a Personal Size Recommendation

Our free FitFinder tool walks you through a few measurements and gives you a recommended size, confidence score and fit checklist before you rent or buy, with support from Atelier's string specialists if you need help confirming the fit.

Violin, Viola, Cello & Bass Size Charts

Use the charts below to find the usual size for a violin, viola, cello or double bass by age, height or arm measurement. If you'd like a personal recommendation, the free FitFinder tool further down the page gives you a recommended size and fit checklist in a few minutes.

Children grow at different rates, so measurements beat age. When a player falls between two sizes, choose the smaller one.

Violin Size Chart

How to measure: hold the left arm straight out to the side, palm up, and measure from the side of the neck to the middle of the palm.

Violin size Typical age Arm length (in) Arm length (cm)
4/4 (full) 11+ and adults 23+ 58+
3/4 9–11 22–23 56–58
1/2 7–9 20–22 51–56
1/4 6–7 18.5–20 47–51
1/8 5–6 17.5–18.5 44–47
1/10 4–5 16.5–17.5 42–44
1/16 3–4 15.5–16.5 39–42
Shop violinsRent a violin

Viola Size Chart

Violas are measured by body length in inches. Measure the arm the same way as for violin.

Viola size Typical age Arm length (in) Arm length (cm)
16"–16.5" Adults, larger hands 26+ 66+
15.5" Adults 25–26 64–66
15" 12+ 24–25 61–64
14" 10–12 23–24 58–61
13" 8–10 22–23 56–58
12" 7–8 20–22 51–56
Shop violasRent a viola

Cello Size Chart

Size a cello by the player's height. When seated, the knees should sit just below the lower bouts and the C-string peg should be near the left ear.

Cello size Typical age Player height Height (cm)
4/4 (full) 12+ and adults 5'0" and up 152+
7/8 Smaller teens and adults Around 5'0" (between 3/4 and 4/4) About 152
3/4 10–12 4'6"–5'0" 137–152
1/2 8–10 4'0"–4'6" 122–137
1/4 6–8 3'6"–4'0" 107–122
1/8 and 1/10 4–6 Under 3'6" Under 107
Shop cellosRent a cello

Double Bass Size Chart

Size a double bass by the player's height while standing. Most school players and many adults play a 3/4 bass, which is considered the standard full size.

Bass size Typical age Player height Height (cm)
3/4 (standard) 13+ and adults 5'0" and up 152+
1/2 9–13 4'6"–5'0" 137–152
1/4 7–9 4'0"–4'6" 122–137
1/8 5–7 Under 4'0" Under 122
Shop double bassesRent a bass

These charts are general guides. A teacher or one of our string specialists can confirm the fit, and rentals can be exchanged for the next size as your player grows.

Get a Personal Size Recommendation

Our free FitFinder tool walks you through a few measurements and gives you a recommended size, confidence score and fit checklist before you rent or buy, with support from Atelier's string specialists if you need help confirming the fit.

The Bonmusica Violin Shoulder Rest is one of the most customizable rests available for violinists who want a truly personalized fit. Its fully adjustable metal frame allows players to fine-tune the height, width, and curve, shaping the rest to match their shoulder structure and playing posture.

Unlike standard fixed-shape rests, Bonmusica can be gently contoured to wrap more securely over the shoulder, providing exceptional stability—especially helpful for advancing students and serious players who need reliable positioning during long practice sessions or performances.

Features

  • Fully adjustable height, width, and curve

  • Minimum height: approximately 1"

  • Durable padded surface for comfort

  • Secure fit with strong, adjustable feet

  • Designed for precise ergonomic positioning

Available Sizes

  • 1/4

  • 1/2

  • 3/4

  • 4/4

Ideal for students through advanced players seeking improved comfort, posture, and control.