【Installation Note】 Color: Black; Qty: 1 pair. Length: 20 (508mm), full extension lengths: 40 (1016mm), suitable for drawers with inner depth ≥ 20 -22 . Left side mount clearance: 0.5 (12.7mm), right side mount clearance: 0.5 (12.7mm). Please push the inner ball bearing to the top of the slide first, and then install it to the slide. There are 8 screws in the card box of the product. We provide a detailed installation video in the listing. 【Full Extension & Ball Bearing Design 】— 3-setions fold is convenient to fully open the drawer for easy access. Ball bearing design ensures smooth and silent drawer glides. 【Detachable 】 The back of the slide rail is designed with a detachable buckle, which is more convenient to install. The rear end of the slide rail is equipped with a rubber mute pad, and the noise is as low as 35 decibels, bringing a more comfortable home experience. If you have any questions, you can contact us in time. 【Anti-rust & Smooth 】The anti-rust ability and oxidation resistance of our slides is superior to the others because of the special electrophoretic coating surface treatment. With dual industrial grade bearing ball inside, the drawers slide smoothly even though carrying heavy items. With a rubber crash pad on, which is a wear-resisting and impact-resistant device, the drawers slide quietly without collision noise. 【Double Load Bearing】 Baidice drawer slides are made of 1.2mm high-quality cold-rolled steel, and the material is one times the thickness of ordinary slides. Full extension drawer slides hold 100 pounds, 40 pounds more than regular slides. ASIN B08L7N3WSC Color Black Brand Name baidice Unit Count 2.0 Count Drawer Type Ball Bearing Slide, Side Mount Finish Types Steel Manufacturer Foshan Nanhai Badiss hardware co., LTD Model Number 4512 Material Type Q235 cold rolled steel Mounting Type Side Mount Number of Items 1 Included Components Screws Maximum Weight Capacity 100 Pounds Manufacturer Part Number 4512 Item Dimensions L x W x Thickness 20.12 L x 1.81 W x 1.02 Th