6.75" Stainless Steel Chock. Hidden studs included with backing plate. Maximum line size 1.0" (25mm), Length 6.75" (171mm), Width 2.0" (51mm), Height 2.75" (70mm), Stud size 14mm, Center to Center (stud) 5" (127mm), Max Deck thickness 2.44" (62mm), Min Deck thickness .44" (12mm), Weight 4.47 lb (2.03kg)