This glass door roller is made from reliable nylon, stainless steel and copper material, can be used for a long period and will not easy to rust or deform. Easy to install and replace old ones without taking much time and effort. style, flexible sliding, sturdy structure, can be suitable for most types of doors. Features - Color: Multi -Material:Brass, Steel - Size: 8.00X2.00X1.20cm/3.14X0.79X0.47in -Diameter:10mm -Width of inner slot:>11.7mm - Widely applied for sliding doors, cabinet rails, window rails, these window pulleys are with excellent weighing capacity. - Small friction coefficient, vibration and the noise resistance and wear resistance for your better using. - Sturdy material makes these door wheel rollers strong and durable, not easy to corrode, help the door to keep balance. - Use double bearing structure to maintain separation between moving parts to reduce rotational friction and support radial. - Not easy to slide out, the sliding patio door roller is suitable for repeated use, safe to your door. Package list: 1 x Glass Door Pulley