What's in the box:

2pcs Piano Hammer Sanding Board Grinding for Piano Tuning Maintaining Accessory (Standard)

Features:
Sanding board, designed for piano felt hammer sanding and maintaining.
S-shaped board design for easier sandingthe margin of the felt hammer.
The sanding paper stick to the surface tightly, durable for lasting use.
The board length is 15.5cm/6.10inch and the width is 2cm/0.79in.
Great accessory for daily piano maintaining.

Specifications:
Material: Wood + sanding paper
Item Length: 15.5cm / 6.10in
Package Size: 17 * 6 * 2cm / 6.69 * 2.36 * 0.79in
Package Weight: 46g / 1.62oz

Packing List:
2 * Hammer Sanding Boards