Schaefer 70-74 Investment Cast 316 Stainless Steel Chock Cleat.   Easy adjustment with the simple lifting pin.  Please note, Schaefer T-Track Chock cleats will fit Schaefer T-Track measuring 1" wide, 3/8" overall height, 1/8" "T" thickness and a base width of 1/2". They will not fit earlier versions of T-Track or some competitors models.  L 6-1/2" (165 mm), ID 1-7/16" (180 mm), Line Size 1/2" (13 mm), Track 1" x 1/8" (25 mm x 3 mm), Pin. Size 1/4" (6 mm), SWL 2500 lbs. (1140 kg), Weight .9 lb. (.41 kg).