METAL The METAL boom is a T8 aluminum monocoque construction wave boom. It is designed for lighter riders with reduced diameter grip for grip comfort. Lockjaw from Severne Sails on Vimeo. SIZE PROFILE DIAMETER BOOM HEAD MATERIAL WAVE I40-I90 WAVE 26mm RDM LOCKJAW T8 ALUMINIUM MONOCOQUE WAVE I50-200 WAVE 26mm RDM LOCKJAW T8 ALUMINIUM MONOCOQUE FREEMOVE I60-2I0 FREEMOVE 26mm SDM LOCKJAW T8 ALUMINIUM MONOCOQUE FREEMOVE I70-220 FREERIDE 26mm SDM LOCKJAW T8 ALUMINIUM MONOCOQUE TECHNOLOGY T8 ALUMINIUM MONOCOQUE CONSTRUCTION The METAL boom is a T8 aluminum monocoque construction wave boom. It is designed for lighter riders with reduced diameter grip for grip comfort. WAVE PROFILE Reduced diameter grip for grip comfort. UNI-GRIP Every boom is gripped using a single, solid piece of EVA LOCKJAW Born through frustration with generic parts, we analyzed every functional feature and current issues inherent in many boom front ends. The SEVERNE LOCKJAW addresses these issues with function, reliability, and performance. T8 ALUMINIUM MONOCOQUE CONSTRUCTION REDUCED DIAMETER FOR MAXIMUM GRIP COMFORT LOCKJAW FUNCTION / RELIABILITY MAST SPECIFIC CONNECTION NO ADAPTER TO LOOSE HIGH DENSITY FRONT CURVE RIGGING DURABILITY