Materials: Marine Grade 316 Stainless Steel Mirror polished, strong and durable Provide maximum corrosion resistance for salt-water marine environments Great rope cleat for dock lines, anchoring, mooring Great choice for sailing, motor boating and other water-sports applications Specification: 4 inch boat cleat Size: Approx. 10 x 1.2cm/ 4 x 0.47inch (L x W) Base Length: Approx. 3.5cm/ 1.38inch; Hole Diameter: Approx. 0.5cm/ 0.2inch Hole Spacing: Approx. 3.1cm/ 1.22inch Base to Base Hole Spacing: 2.4cm/ 0.94inch 6 inch boat cleat Length: Approx. 14.8 cm / 6 inch Width: Approx. 1.7 cm / 0.37 inch Hole Diameter: Approx. 0.7 cm / 0.28 inch Hole Spacing: Approx. 4 cm / 1.57 inch (different base); 4.3 cm / 1.69 inch (same base) Package Includes: 1 Piece 4 inch Boat Cleat 1 Piece 6 inch Boat Cleat