SBDs (Pack of 5) 3/8” (10 mm) Diameter, 4” Length. Galvanized Steel Carabiner – Clip Snap Hook -Spring Loaded Karabiner- Opening: 1/2", Inside Length: 3", Inside Width: 1/2". Superior strength, excellent rust rrosion resistance. Versatile binding, rigging and anchoring hardware - allows fastest connect/disconnect. Open-auto-close spring gate with interlock tooth prevents load forcing open. Allows quickly connect/disconnect of ropes, chains & straps. Can be used to connect a chain, wire rope quickdraw, latchkey, climbing ropes connected etc. Allows fastest connection/disconnection. Heavy Duty usage for Strength Exercise Equipment Meter Weight Stack Pull and Lift. SBD Ltd. assumes no responsibility for the use, misuse or misapplication of its products. Products are sold with the specific understanding that the purchaser and/or user are thoroughly familiar with their proper use. SBDs (Pack of 5) 3/8” (10 mm) Diameter, 4” Length. Galvanized Steel Carabiner – Clip Snap Hook -Spring Loaded Karabiner-