These Bells feature traditional styling. 8” Bells meet Coast Guard, ABYC, and NMMA requirements (200 cm mouth opening and striker mass no less than 3% of mass of the bell) for use on vessels 12m (39.4') to 20m (65.6') in length. Constructed of improved cast brass (not lower grade spun brass). Installs with two #6 FH fasteners (not included).