Package includes: 2 sliding door wheels and 2 mounting parts. High quality material: Made of high hardness ferroalloy, thick material, not easy to deform, sturdy, durable, resistant to wear and corrosion. Pulley design: provides better fit and smoother sliding, stable and safe to use. With this accessory, you can open the cabinet door more conveniently and easily. Quiet operation: With the damping pad, they work quietly and robustly, protecting you from loud noises and possible injuries caused by suddenly slamming the door. Wide use: Fits sliding doors of cabinets, windows, wardrobes, closets, display cabinets and shoe cabinets, doors of cupboards, etc. And is an ideal replacement for your traditional rollers.