General description The VEVOR 10 Pairs of 533.4mm Drawer Bottom Side Mount Rails are designed for heavy-duty use, featuring a full ball bearing extension for smooth operation. With a load capacity of 100 lbs, these rails ensure a reliable and quiet storage solution for your cabinets and drawers. The combination of thickened galvanized steel and a soft-close mechanism provides both durability and ease of use. Technical specifications Model: 30201B.533-10 Main Material: Carbon Steel Static Load Bearing: 100 lbs / 45.4 kg Dynamic Load Bearing: 80 lbs / 36.3 kg Fits Drawer Length: 21 inch / 533.4 mm Product Dimensions: 21.54 x 2.4 x 2.13 inch / 547 x 61 x 54 mm Quantity: 10 pcs Compatibility and accessories Available in 15", 18", and 21" universal sizes, compatible with various mainstream drawer slide brands. Package Content: Drawer Slides x 10, Handles x 20, Self-tapping Screws ST3.5x11 x 1 Pack. Installation These drawer slides are suitable for drawer side panels with thicknesses of 1/2