TEKTON 1610 3-Pc. 3/8"-Drive Extra Long Extension Bar Set features: Drop Forged Carbon Steel, Heat Treated and Chrome Plated, Fully Polished, Spring-Loaded Ball Bearings Hold Sockets Securely, Notches on Extensions Lock onto Ratchet Drive, 3-pc. 3/8"-Dr. Extensions: 15", 18", 24"