Spr. Loaded/Lined Slide/S.S. for 1-1/4" T-Track 705-92705 92 Stand up spring block for 1 1 4" T Track. Delrin(tm) sheave ensures smooth operation and high safe working load. Stainless Steel cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment. Track Size 1 1 4" x 3 16" (32 mm x 5 mm), Boat Size Up To LOA, 33', 12000 lbs., 520 sq. ft. (10 m, 5455 kg, 48 m2), Sheave Dia. 2 3 8" (60 mm), Max Line 1 2" (12 mm), Length 4" (102 mm), W 1 9 16" (39 mm),