Stainless Steel 9-1/4" Chock. High Quality 316 Stainless Steel with soft internal radius for minimum chafe. Max line size 1" (25mm), Length 9-1/4" (235mm), Width 2" (51mm), Height 2-3/4" (69mm), Weight 4 lbs (1.82kg), Requires (2) 1/2" Flat Head fasteners on 7-1/2" centers.