What's in the box:

Violin Shoulder Rest Mute Strings Set Violin Part Replacement Kit for 3/4 4/4 Violins (Standard)

Features
The shoulder rest can be adjusted to fit 3/4 or 4/4 violins.
With thickened soft pad design, the non-slip shoulder rest is comfortable to wear.
Made from rubber and stainless steel, the shoulder rest, violin mute, and strings are very sturdy and durable.
The violin mute is great for violin practicing if you don't want to disturb other people.
The strings can be reserved for exchanging when you encounter an emergency of a sudden string breakage.

Specifications
Color: Black
Material: Rubber & stainless steel
Shoulder Rest Size: 20 * 6.8 * 1cm/ 7.8 * 2.6 * 0.3inch
Shoulder Rest Weight: 57g/ 2.01oz
Mute Size: 5.3 * 2.6 * 1.2cm/ 2.1 * 1 * 0.4inch
Mute Weight: 16g/ 0.56oz
Package Size: 20.5 * 7.3 * 4.5cm/ 8.07 * 2.8 * 1.7inch
Package Weight: 103g/ 3.6oz

Package List
1 * Shoulder Rest
1 * Mute
4 * Strings