Adjustable Fiddle on Slide for 1" T-Track 74-41Track Size 1" x 1 1 8" (25 mm x 3. 2 mm), Boat Size Up To LOA, Displ., Sail Area: 33', 12000 lbs., 520 sq. ft. (10 m, 5455 kg, 48 m2), 1 1 16" & 1 3 4" (27 mm & 44 mm), Max Line 5 16" (16 mm), L 3" (76 mm), W 1 1 4" (32 mm), H 3 9 32" (83 mm), Bearing Height 1 29 32" (48 mm), SWL 500 lbs. (225 kg), Weight 15. 5 oz. (0. 45 kg)