Uniques DesignSteel ball bearings and cushioning pads for smooth gliding and quiet performance, and effectively reduce damage caused by bumping when pulling in and out.5 adjustable holes to adjust the height according to your requirements. MaterialBuild your own custom sliding shelf! Our keyboard slides are made of heavy-duty cold-rolled steel construction with rust-resistant coating, smooth, quiet and stable movement, strudy, more durable and longer lasting than ordinary keyboard slides. Easy to InstallSimply tighten the screws with a screwdriver to install this keyboard slider easily. Package includes 2 keyboard slides, 8 mounting brackets and mounting screws. Strudy Load CapacityMaximum load capacity of each pair of keyboard slides is 45kg, sturdy, not easy to rust, can be used in wet and harsh environments. The inner rail can be detached by pressing the buckle for easy installation,The rear end of the slide rail is equipped with a rubber mute pad., Manufacturer: SCMYZLYD