ITEM NAME:316 Stainless Steel 1/8inch to 1/4inch Marine Rope Cleat for 3-6mm Boat Deck Description: A clam cleat (or jam cleat) in which the rope is held between two fluted stationary pieces. Such a cleat vaguely resembles two halves of a clam shell held back to back. Easy to adjust while sailing to maintain the ideal sail shape Fits rope sizes 3-6mm and has an overall length of 54mm, a width of 15mm, and a height of 17mm Material: 316 Stainless Steel Specification: Rope Diameters: 3-6mm / 1/8"-1/4" Length: Approx. 55mm / 2.17 inch Width: Approx. 15mm / 0.6 inch Height: Approx. 18mm / 0.7 inch Hole Diameter: Approx. 5mm / 0.2 inch Hole Centres: Approx. 45mm / 1.77 inch Package Includes: 1 Piece Clam Cleat SKU: DMO0000355666002765.A clam cleat (or jam cleat) in which the rope is held between two fluted stationary pieces. Such a cleat vaguely resembles two halves of a clam shell held back to back. 1 Piece Clam Cleat. Easy to adjust while sailing to maintain the ideal sail shape.