1,  Piano Slow Fall Device is a special made good quality piano slow down product to protect your or your children's hands in harm because of sudden fall of the keyboard.

2, This piano accessory is very useful for pianos without this slow down system.

3, using more and more for family and school pianos.

4, Metal oil pump very stable and good quality.

5, special strenghtened metal hinge.

6, good quality rubber roller.