NEW LIGHTWEIGHT BATTERY BOX,11" WD,BOLT-ON,RACING,DRAG RACE, SOUTHWEST SPEED Box has inside dimensions are 7 1/8" deep x 11" wide Bolt-on design allows for adjustment of the box on the frame Lightweight steel construction Includes aluminum clamp bar, 2 j-bolts, & 2 jam nuts Lightweight, AdjustableBolt-On Battery Box with Hardware (SWS Part #499-903).