Schaefer 70-75 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 1-1/4" wide, 7/16" overall height, 3/16" "T" thickness and a base width of 11/16". They will not fit earlier versions of T-Track or some competitors models.  L 7-1/2" (190 mm), ID 1-3/4" (45 mm), Line Size 5/8" (16 mm), Track 1-1/4" x 3/16" (31 mm x 4.6 mm), Pin. Size .355, SWL 4500 lbs. (2045 kg), Weight 1.5 lbs. (.68 kg).