The Hettich KA 5632 ball bearing 12" drawer slides are a telescopic precision full extension drawer slide with cushioned in and out stops and positive hold-in detent. Made of chromated steel with precision ball bearings, the 5632 provides smooth action and high lateral stability. Priced per pair - Screws Sold Seperately. Weight capacity 100 lbs. (45kg) K.C.M.A. Installation Width: 1/2" (12.7mm) Height: 1-13/16" (43.3mm)