This cabinet door roller is made from reliable material, can be used for a long period and will not easy to break or deform. Easy to install and replace old ones without taking much time and effort. style, flexible sliding, sturdy bearing structure, can be suitable for most types of doors. Features -Color:Silver -Material:Iron -Size:4.30X0.90X0.60cm/1.69X0.35X0.24in -Wheel diameter:10mm -Hole diameter:4mm -Hole distance diameter:30mm -Wide Applicable: Widely applied for sliding doors, cabinet rails, window rails, these window pulleys are with excellent weighing capacity -Mute Designed: Small friction coefficient, vibration and the noise resistance and wear resistance for your better using -Sturdy and Durable: Sturdy material makes these door wheel rollers strong and durable, help the door to keep balance -Friction Reducing: Use sturdy structure to maintain separation between moving parts to reduce rotational friction and support radial -Safe Using: Not easy to slide out, the sliding patio door roller is suitable for repeated use, safe to your door Package list: 20 x Pulley Wheels