ACT Cable Tie / Lacing Cord Removal Tool Innovative design utilizes two safety guards, which gently slide behind the cable tie strap for safe and easy removal without the risk of damaging bundled cables and/or wires Ergonomic cushion grip is designed to fit your hand more naturally, to maximize comfort and contraction motion for easy, all-day operation Heat-treated alloy steel forged blades for strength and durability ROCKWELL HARDNESS: 53-58 Rc Works on CableTies 18lbs to 250lbs Tensile Strength