Product Features: * Material: cold rolled steel * Finish Color: Zinc-plated * Load Capacity: 45kg * Drawer slide sizes(the closed size): 250mm,350mm,450mm,500mm,550mm; 600mm; 650mm; 700mm * Height: 45mm ; Thickness: 12.7mm * Fit for side mount * Extension: 3-folds full extension ball bearing * Minimum Side Space: 12.7mm on each side of the drawer * Use:Office appliance,cabinet and house drawer,anti-anti-acid strongly Tips: 1, This does not have to be exact match just as long as the runner is shorter than the depth of your cabinet 2,The longer the runner, the better the opening of the drawer Package includes: 1 x 1/2/5/10 Pairs Drawer Slides