Recommended for use with kitchen cabinets and bathroom vanities. Designed for applications in the 50-pound class. 1 height; clearance required: 1/8 each side 1-1/2 from rear of drawer to cabinet. Drawer needs to be 3/8 shallower than opening. Rust-resistant precoated zinc cold rolled steel. High density polyethylene rollers. Mounts with staples or screws. Drawers lift out for easy removal. Includes front rollers track rear roller guide metal rear mounting bracket #6 x 1/2 Phillips Panhead screws and instructions.