ITEM NAME:Stainless Steel Chock Boat Dock Deck Cleat Line Rope Yacht Marine Hardware Description: Boat Bow chock for easy line insertion Precision cast 316 marine grade solid stainless steel. Maximum corrosion resistance and durability in the saltwater environment. Polished to a beautiful mirror-like finish. The distance is 80mm / 3.15" between the two screw hole centers. Specification: Size(L x W): 107 x 65mm /4.2" x 2.6" Material: stainless steel Package Includes: 1 Piece Bow Chock SKU: DMO0000392767007715.Boat Bow chock for easy line insertion. 1 Piece Bow Chock. Precision cast 316 marine grade solid stainless steel. The distance is 80mm / 3.15" between the two screw hole centers. Material: stainless steel.