Extension Metal Drawer Slides Specification Material: metal and cold-rolled steel Color: Silver Height: adjustable Width: 35 mm Surface treatment: anti-corrosion coating (corrosion-resistant, rust-resistant, abrasion-resistant) Load capacity: 40 kg Widely used: easy to understand installation, flexible operation, ideal for computer keyboards, cabinet drawers, electric pianos and more. Dimensions- Closed Length 305mm (12 inches) | Pull Out Length 195mm (8 inches) | Total Length 500mm (20 inches) Closed Length 405mm (16 inches) | Pull Out Length 245mm (10 inches) | Total Length 600mm (28 inches) Closed Length 455mm (18 inches) | Pull Out Length 285mm (11 inches) | Total Length 690mm (31 inches) Set includes. Drawer slides (x 2) Note: Due to manual measurement, there may be an error of 1-3mm, please understand! The product may have slight chromatic aberration due to the shooting light, angle, and different displays. Please understand! High-quality metal: the drawer glides have a standard load capacity of 40 kg per pair. Suitable for building custom pull-out keyboard platforms.Flexible, smooth: ball-bearing slides with solid steel balls for flexible. Adjustable height: the fixed brackets that the slide attaches to the cabinet can be assembled inwards or outwards and the height can be adjusted from 55 to 107mm. Durable: The drawer slide is made of high-density metal, which is reinforced and durable and has a longer service life. Easy to install: easy to understand installation, simply screw the board of the keyboard rack in place. (The package includes screws for mounting.) Widely Used: Our draw runners is Ideal for almost all kinds of drawers, in kitchen cupboards, wardrobe, lockers, drawers, office desks, bedside cabinets, etc. Please check the size before order.