End Arm Bracket End Arm BracketEnd Arms are used to extend work area outward.21.5″ (EA21)21 1/2″ End Arm Brackets to extend work area outward up to 21 1/2″. Wt. 12 lbs.30″ (EA30)30″ End Arm Brackets to extend work area outward up to 30″. Wt. 12 lbs.