Shock absorberEnhance the of your piano with the Ultra-Thin Piano Keyboard Cover Descent Control Device.This innovative device ensures slow and gentle closing of the piano cover, preventing sudden impact and protecting the keys.The hydraulic damping damper provides smooth, controlled descent, while the sleek black design adds a sophisticated touch to your piano.The piano cover control arm offers reliable and precise performance, making it a must-have accessory for pianists and piano enthusiasts.This anti-slip device is perfect for piano playersEnhance the of your piano with the Ultra-Thin Piano Keyboard Cover Descent Control Device.This innovative device ensures slow and gentle closing of the piano cover, preventing sudden impact and protecting the keys.The hydraulic damping damper provides smooth, controlled descent, while the sleek black design adds a sophisticated touch to your piano.The piano cover control arm offers reliable and precise performance, making it a must-have accessory for pianists and piano enthusiasts.This anti-slip device is perfect for piano playersFeature:Ultra-Thin,Type:Piano AccessoriesColour: Blackmaterial: metalPackage Contents:1 xOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.