Application: The opening length should be between 8mm and 9.5mm (0.3 inches to 0.37 inches), and should not exceed 9.5mm (0.37 inches), as it may become too loose and fall off. The width should be at least 7.6mm (0.29 inches), otherwise, installation may not be possible Soft Quiet Closing & No More Slams: form self-closing hinges into soft-closing hinges instantly and no more slamming doors. The damper mechanism ensures that the cabinet doors close smoothly and quietly, reducing noise and minimizing the possibility of damage to the cabinet and surrounding furniture Solid Construction & Smooth Dampening System: The soft close cabinet door damper is made of quality iron and plastic, ensuring and performance. Clip-Top & Simple Attachment: Takes seconds to install, all you need to do is snap the soft close damper into position-no screws or additional adjustments required. Simple Upgrade & Seamless Blend: form your existing cabinets effortlessly with these soft close damper, designed as a perfect retrofit for non-slow-closing hinges already installed . Color: Silver & Gray Material: Iron, Plastic Package Contents: 10 Pack * Hinges Damper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.