VADANIA Heavy duty soft close drawer runners 500mm - Heavier Duty & thicker Design. 2mm thickened strong steel drawer runners which can carry up to 258lb/117kg items(the longer the lower carry weight, get detail in each size description) ?Double Spring Soft close. With two strong spring soft close device, the drawer runners can work smoothly even though in full loaded. ?Strong Ball Bearing & Separable. 6.5mm steel ball which can keep sliding monthly when in heavy duty. The inner sliders can be separated which make the installation easier. ?3-Fold Completely Full Extension Slides - Enable the slides to fully extend. Suitable for Mechanical Cabinets, Warehouse Cabinets, Industrial Cabinets, Van/Truck Drawers, Sliding Door/Windows/Furniture Specification: ·NAME?VADANIA Heavy Duty Drawer Runners K2053 ·MATERIAL: Cold-Rolled ?Cold Rolled? Steel ·INSTALLATION METHOD: Side Mount ·MAXIMUM LOAD CAPACITY: 258lb / 117kg. ·Origin Length: 19.7?/500mm ·Extended Length: 39.6?/1005mm ·Width: 2?/53mm ·Max Load: 258lb/117kg ·Weight: 6lb/2.7kg ·MINI DEPTH OF CABINET: Drawer Length + 0.12in / 3mm ·SLIDE STYLE: 3 Folds Full Extension, Side Mount, Heavy Duty, Soft close, Separable. ·PLATE THICKNESS: Outer Slider 0.08?(2mm) / Middle Slider 0.08?(2mm) / Inner Slider 0.08?(2mm) ·Scope of Application: Mechanical Cabinets, Warehouse Cabinets, Industrial Cabinets, Van/Truck Drawers, Sliding Door/Windows/Furniture Package: 1 x Pair of drawer runner The mounting brackets and screws are not included. Installation Instruction - Only 6 easy steps! Please contact us for PDF file/search ?VADANIA? for official website How to Chose Size Measure the depth of the drawer ( for example, if the depth is 13in/330mm, choose 12in/300mm drawer runners. Deviations of 0.7in/20mm-1in/30mm are suitable)