Quick Products 1/2in.Scissor Jack Adapter. The adapter pairs with the crank end of the jack and works with both U" shaped and singe-eye ends. Be aware that the adapter will not work with hex-style cranks. Features of Quick Products QP-SJA 1/2in.Scissor Jack Adapter Increases the speed and ease that your jack will raise and lower Versatile: fits onto 1/2" drives or into 13/16" sockets May remain permanently attached to the jack for the quickest setup Works with both U" shaped and single-eye ends Will not work with hex-style cranks Package Contents: Quick Products QP-SJA 1/2in.Scissor Jack Adapter Quick Products QP-SJA: 1/2in.Scissor Jack Adapter