Squids® 3011 Tool Lanyard, Retractable, Dual CarabinerPatented lightweight aluminum carabiner with double action self locking gate connects to tools like wrenches, grinders, drills, impact drivers, and more Tether keeps tools weighing 0. 5 lbs. in a retracted state and prevents tools weighing 8 lbs. from falling on people or objects below ABS plastic housing protects the internal components with a cut resistant Dyneema cord with a durable protected weave to hold up in tough environments Retractable