Ball design: built-in solid balls, long service time Adopt damping buffer to slowly close the mute effect Easy to use, (including screws) screw hole positioning is firmer, user-friendly two-hole design, and highly adjustable installation size Say goodbye to the era of noise, buffer the speed of drawer closing to avoid noise caused by collision This drawer slide is ideal for kitchen cabinets, dressers and all home furniture drawer systems., Manufacturer: LRFNKCT