The Quick DP2 Prince 312 vertical windlass is suitable for boats from 5m to 7.5m (16 to 25ft). The vertical mount windlass is easy to install with an AISI 316 Stainless Steel base. Featuring an integrated sensor and magnet for chain counter and a manual free-fall system. The Quick windlass features a 6mm (1/4") gypsy which is suitable for 6mm ISO chain and a 1/2" rope.