Place of Origin: Beijing China (Mainland) Brand Name: Tianma Model Number: A336 Application: CONNECTING LINK Material: S Alloy Connecting link A336 Material: Alloy SteelAlloy Connecting link A336 Material: Alloy SteelForged steel, Quenched & TemperedMBS=4XWLLSize: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1.1/4" connecting link