Arborist-specific: Aluminum oval triple lock gate carabiner with copper anodized finish. Features & Specs: MPN: USR-127-A3TU Triple Lock Gate Aluminum Alloy Anodized Keylock MBS ↔22 kN* ↕7 kN WEIGHT: 2.9 oz *22 kN is equivalent to 5,000 lbs Gate Opening: 19 mm L: 111 mm W: 69.5 mm