Description This ultra-thin piano lid decelerator features an external hydraulic buffer system designed to ensure smooth and controlled lid closure. Its innovative damping mechanism prevents accidental pinching and protects fingers, making it an essential accessory for piano safety and maintenance. The sleek design seamlessly integrates with any piano style. Features -Color:Black -Material:Aluminum alloy -Size:10.00X7.50X3.00cm/3.93X2.95X1.18in -Ultra thin design: the sleek and slim profile seamlessly integrates with your piano, preserving its aesthetic appeal without compromising functionality -Hydraulic control system: external hydraulic mechanism ensures smooth and stable lid descent, preventing sudden closures for enhanced safety -Damping mechanism: builtin damping system effectively absorbs vibrations, maintaining the piano's pure sound during use -Noise reduction: slow fall feature minimizes impact noise, creating a serene environment for uninterrupted practice sessions -Universal compatibility: designed to fit various piano models, the anti pinch mechanism ensures smooth and safe lid operation every timePackage list: 2 x piano cover lowering device