Handxen boat deck cleat is made of highly polished stainless steel with an open base, which is one of the most popular cleats used on different vessels. Sleek and modern design makes decks look stylish with easy installation. Specification: Material: 316 stainless steel 4 holes for mounting (bolt or nut is not included) 1 piece dock cleat 6" 6" overall length (152.4mm) About 2.22" (56.5mm) center to center measurement of the holes. (Please see the pictures for detailed dimension reference) Package Included: 1 x 6" Boat Deck Cleat Note: Please ensure the dimension you need before purchase.