Ronstan's Cam Cleat with Bullseye Swivel Base is commonly used on dinghies and catamarans to lead, adjust, cleat halyards and lines from 2/32 in (2mm) to 5/16 in (8mm) in diameter. The 360ﾰ-rotating base combined with the small T-cleat permit easy cleating and releasing from any angle. Ronstan manufactures the cleating plates out of a heavy gauge allow for stiffness and minimum distortion under load. The dead eye/fairlead has a stainless steel liner for low friction and long life. The cleating plates/arms are heavy gauge alloy for stiffness and minimum distortion under load. The other fittings, including the deadeye, on this item are of grade 316 stainless steel.