4pcs 4x20x6.5x7.4mm White Inner Dia 4MM U-Groove Nylon Pulley Wheel for Sliding Door

Product Features: 1. Each product has a unique part number label on its inner packaging, confirming its conformity. This label indicates the part number, model number, and inspection date. 2. For any questions regarding the product, please provide us with the part number so we can verify it. We guarantee the protection of your rights. 3. Deep groove ball bearing. Smooth gliding. Pressure and wear resistant. 4. Made of plastic and steel. Ideal replacement for your damaged parts. 5. Suitable for bathroom door tracks, glass closet doors, and sliding doors. Product Specifications: Materials: Plastic + Steel Color: White Dimensions: Inner Diameter: 0.4 cm / 0.16 inch Outer Diameter: 0.2 cm / 0.08 inch Width: 6.5-7.4 mm Width: 0.65 cm / 0.26 inch Maximum Load: 27 kg Weight: 23 g Note: The inner bearing is not removable. Package Contents: 4 nylon casters