Keychain Corkscrew, Black Keychain Corkscrew, Black - Unique, collapsible corkscrew fits onto keychain. The hinged parts form a handle by retracting the covering sheath upward. Zinc alloy handle + stainless steel parts. 3-9/16 long. Open, across top 3-1/2 wide. Opens easily to quick use Folds and locks to hide the acutal cork screw