Feature: 1. MAXIMUM LOAD CAPACITY 120KG: The slide rail is made of 2mm thick high density, strong strength cold rolled steel plate. Even if carrying a weight of 120KG and requiring 800000 times, the slide can keep your drawer stable and safe during full load push pull testing without damage. Our slide rails have a long service life. 2. 3 TIMES FULL EXTENSIONS: Slide length, 800 millimeters. Fully extended length, 1500 millimeters. The fully extended length is intentionally designed to be more than twice the closed length of the slide rail, leaving enough space for installation to allow for space to spiral into the stairs; Moreover, due to the fully extended function of the slide rail, the drawer can be fully pulled out, making it easy to access and store the storage space of the whole drawer. 3. RUST PREVENTION AND SMOOTHLY OPERATION: Due to special electrophoretic coating surface treatment, our slide rail has better rust prevention and oxidation resistance than other slide rails; The interior is equipped with industrial grade solid steel balls, which not only minimizes frictional resistance and makes sliding smoother and quieter, but also effectively increases the load bearing capacity of the slide rail. 4. APPLICATION RANGE: Suitable for cabinets under stairs and any staircase cabinet, achieving the miracle of staircase storage space. Also suitable for heavy duty drawers such as wine cabinets and wardrobes that require strong load bearing capacity. 5. IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency! Specification: Item Type: Drawer Slide Material: Cold Rolled Steel Suitable Cabinet Depth: Approx. 800 to 1400mm / 31.5 to 55.12in Rail Installation Height: Approx. 53.8mm / 2.12in Suggested Cabinet Width: Approx. 400 to 600mm / 15.75 to 23.62in Cabinet Height not Exceeding: Approx. 2m / 6.6ft The space on both sides of the cabinet is approximately Approx. 5mm / 0.2in Load Bearing: Less than or equal to Approx. 120kg / 264.6 lb . Package List: 2 x Slide Rail Note: 1. Without screws, the customer matches screws of corresponding length according to the thickness of their mounting plate, which is applicable to self tapping screw.2. Please allow 1 to 2in error due to manual measurement. Thanks for your understanding.