1、Sturdy and Durable: The barn damper is made of premium stainless steel, metal shell, durable, corrosion resistance, oxidation resistance. 2、Shock Absorption: This buffer damper can effectively absorb shock, buffer deceleration, and prolong the service life of accessories. 3、Slient: This door damper closes automatically, no sound when sliding the door, no noise, will not disturbe your rest, silent sliding. 4、How it Works: Concealed behind slide rails, slows down the door when it's about to close, and stops it gently in its final position. 5、No Punching: This barn door damper is easy to install, no punching, just use screws to install and fix it, and the operation is simple. 1 x Damper 1 x Actuator 3 x Self Tapping Screws 2 x Rail Hook 1 x Hex Wrench Item Type: Barn Door DamperMaterial: 304 Stainless Steel, POMGross Weight: 275g / 9.7ozProduct Technology: BrushedService Life: over 50000 timesProduct Tension: Tension 15-35NFeatures: corrosion resistance, oxidation resistance, all round silent, 200kg weight pulley silent impactProduct Application: door, sliding door, shed, cabinetDamping Size: Approx.31 x 2 x 2cm / 12.2 x 0.8 x 0.8in