Gobrico Drawer Slides Heavy Duty Full Extension 22in Ball Bearing 3Folds Side Mount Furniture Glides Runners Hardware 2Pair Length:22"(550mm),Thickness:1/2"(12.7mm), Width:45mm,Load capacity:100LB Mounting:Side/Rear Mount with Brackets, Material:Cold Rolled Steel Soft/Self Close,Ball Bearing,Side Clearance:1/2 inch Includes left and righ hand slides,installing screws.Side/Rear Mounted Brackets are not included To determine which size of slides are good for your drawer, please measure the length of the drawerwithout the frame board.And if the length is not even, please choose1 inch shorter.The length of slides can't be longer than the cabinet case depth