12 Ga. x 4' Brand New GMC Heavy Duty Manual Box & Pan Brake , Mdl. BB-412-6HD, ISO 9001 Certified, Large 1-9/16" Beam Opening, Adjustable, 1" Beam Adjustment (Front & Back), Finger Assortment: 2" - 2 pcs, 3" - 4 pcs, 4" - 2 pcs, 5" - 5 pcs, Stop Rods for Repeat Bends, All Steel Heavy Body Construction with Extra Heavy Tie Rod, One Year Warranty for Parts, #SMBB4126HD