Package includes: 2 sliding door wheels and 2 mounting parts Product dimension dimensions: 80mm x 85mm, pulley diameter 43mm, load capacity is 20kg. High-quality material: Made of high-hardness ferroalloy, thick material, not easy to deform, strong, durable, wear-resistant and corrosion-resistant. Pulley design: Provides better fit and smoother sliding, stable and safe to use. These accessories allow you to open the cabinet door more conveniently and easily. Quiet Operation: With the damping damper, they will operate quietly and robustly, protecting you from loud noise and possible injury by a sudden knock of the door. Wide Usage: Fits for sliding doors of cabinets, windows, cupboards, wardrobes, display cabinets and cabinets, wardrobe doors, etc. And it is an ideal replacement for your traditional design rollers.