The IDEAL Quick Snap connector provides exceptional performance and incredible value. Quick Snap can be installed quickly and easily, without the use of tools, securing cable in place and providing superior protection from damage that can be caused by rough knock-out edges. Simply push in - no tools required. Protects and secures cableSnap connector into 1/2" knockout Insert from the outsidePush non-metallic sheathed cable through connectorSecurely holds cable while protecting from rough edges of knockouts.