Description: - 【Increase Service Life】: The fallen of the piano cover may damage the framework of piano. With our device, the service life of your piano will get longer - 【Effective】 : After being installed, the cover will close down slowly, preventing your hands and fingers from being hit - 【Material】: Piano lid slow fall device made of aluminum alloy, and thin. Can be used for tens of thousands of times. Easy to install, just stick it onto the place you want - 【Easy Installation】: Simple installation process that does not require professional knowledge, allowing you to set it up in minutes - 【Widely Uses】: Suitable for or light covers, this hydraulic controlling device can help lower the cover slowly. Protect yourself and the piano. Especially suitable for upright piano Specification: - Material: Aluminum Alloy - Size: 9.5cmx2.7cmx7.5cm/3.74inchx1.06inchx2.95inch Package Includes: 1 Piano Slow Fall Device 1 Tape Sticker Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.