Aluminum Booms Carbon Booms Dealers About Hawaiian Pro Line Start Page All Hawaiian Pro Line booms feature 24 of adjustment and 1 1/8 diamater grip. Our unique twin-pin, Snap-Lock adjustment system is standard on all Hawaiian Pro Line booms. HAWAIIAN PRO LINE, a division of MACLEAN QUALITY COMPOSITES 8385 South Allen Street #140, Sandy Utah 84070 Sales Office: 714-891-7414 Fax: 714-891-5587 ...