ITEM NAME:Boat Open Cleats Clam Cleat Anchor Tie Down Rope Clip -316 Stainless Steel for 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 sail shape Fits rope sizes 3-6mm and has an overall length of 54.5mm, a width of 17mm, and a height of 19mm Material: 316 Stainless Steel Specification: Rope Diameters: 3-6mm / 1/8"-1/4" Length: Approx. 54.5mm / 2.15 inch Width: Approx. 17mm / 0.67 inch Height: Approx. 19mm / 0.75 inch Hole Diameter: Approx. 5.5mm / 0.2 inch Hole Centres: Approx. 28mm / 1.1 inch Package Includes: 1 Piece Clam Cleat SKU: DMO0000355566002764.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 sail shape.