Amarine-made Stainless Steel 316 Bow Anchor Roller - Fixed-02205s Manufactured from 316 grade stainless steel. Spring loaded pin to retain anchor and rode. Black nylon roller to prevent chafing of the rode. Base length 4-7/8" / 125mm , Overall length 8-7/8" / 225mm Width 2-3/5" / 65mm Height 3" / 75mm Mounting hole size 1/3" / 8mm