Features:
Works well with all size of 1/2, 1/4, 1/8 violin.
Easy to install and disassemble with the convenient fastener tape.
Self bowing practice guide and it help you cultivate correct bowing and wrist action.
Mini size and lightweight for you easily put it into your gig bag.
Great for beginners to master correct bowing action and violinists to improve their playing skill.

Specifications:
Material: Plastic
Suitable for: 1/2 1/4 1/8 Violin
Item Weight: 11g / 0.4oz
Package Size: 8 * 8 * 2.5cm / 3.1 * 3.1 * 1.0in
Package Weight: 21g / 0.7oz

Package List:
1 * Violin Bow Corrector

Note:
The violin not included.