USAGE: The adapter is designed for extending a wrench with another wrench or power bar, giving more leverage on seized bolts and nuts MATERIAL: Made of quality metal material, sturdy, and durable PRODUCT: Wrench Extender Adaptor APPLICATION: 1/2 inch drive or 21mm Hex, extendable for all kinds of wrenches Description:, Weight: 0.5842249943 pounds, Manufacturer: KIXZSAZ