Mid-Rail Chock/Cleat Stainless Steel - 1-1/4"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.Specifications:Length 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 .355SWL 4500 lbs. (2045 kg)Weight 1.5 lbs. (.68 kg)