Features:
3-in-1 kit is useful for 3/4 4/4 violin.
4 fine-tuning spinner string hook.
Ebony tailpiece testing is fine.
A high quality nylon  tail gut.

Specifications:
Material: Ebony， Aluminium Alloy and Nylon
Item weight: 41g / 1.5oz
Package size: 14 * 7 * 1.5cm / 5.5 * 2.7 * 0.6in
Package weight: 43g / 1.6oz

Package List:
4 * Fine-Tuning Spinner
1 * Tail Gut
1 * Tailpiece

Note:
The violin and bracket in the picture is not included.