This product is a sliding cabinet door track set, which is made of cold rolled steel, nylon material, with good texture, safe and practical. Easy to install and use, it can be easily applied to your cabinet. It is a very practical accessory that will meet your needs well. Features -Color:Silver -Material:Cold rolled steel, nylon -Size:9.00X7.00X1.20cm/3.54X2.75X0.47in - These sliding door rollers are designed to withstand long-term use without wearing out or breaking down easily. - This roller wheel will provide smooth sliding. It can help you slide your furniture door easily. - Reasonable structure, suitable for most sliding doors, and can well meet your needs. - From wardrobes and kitchens to doors and windows, these rollers can be used in a wide range of settings, making them a practical and versatile choice for any home or office. - Every detail is carefully crafted, experience the high durability and practicality. Package list: 4 x pulleys 4 x upper wheels 12 x screws