Ball Bearing Drawer Slides Material: drawer slides are made of high grade cold-rolled steel with zinc plated finish, heavy-duty and durable, load-bearing, corrosion-resistant and hard to get rust. Solid ball bearing ensure sooth opening and closing, can serve you many years. Load Capacity Side Mount Ball Bearing parameter: Width:17mm/0.66"; Length:182mm/8",214mm/9",246mm/10",278mm/11",310mm/13",342mm/14",374mm/15",406mm/16" Bearing drawer slides furniture slide feature: 2 folds structure really full extension.The 17mm Width (around 0.66") slides industrial standard width guarantees real 100 LB rated capacity.Side mounting and 17mm groove mounting can be selected. Keyboard Cabinet Cupboard Drawer Runners use for: filing cabinets, desk pedestals and general storage drawers usage. Furniture Hardware Package: 2pcs×Full Extension Telescopic Metal Ball Bearing Drawer Slides