Description: 100% brand new and high quality Effectively prevents the keyboard cover from slamming down suddenly, hurting or injuring your fingers unexpectedly. Especially good for your kids This hydraulic controlling device will enable lowering the heavy cover slowly and avoid any damage due to sudden slamming Sudden slamming of the keyboard cover not only cause unexpected accidents, it also damages the piano external framework Material: Steel Color: Black Size Chart: Size(LxWxH): Approx. 10.5x2.5x7.5cm Package Includes: 1 x Piano Descend Control Device 1 x Sticker Note: Due to manual measurement, there may be 1-2mm error in size
