Craftsman 4 Piece 3/8-Inch Extension Bar Set, 9-43282 Craftsman 4-pc 3/8-in dr extension bar set includes 1.5, 3, 6 and 10 in. extensions compatible with your Craftsman sockets and ratchets Material construction: alloy steel with easy-clean finish, simply wipe off with a damp cloth and dry before storing in toolbox The four-piece set has a combined weight of 1.13 pounds Strong, durable and designed to provide easy-reach access to the deepest spaces Backed by Craftsman's Lifetime Guarantee