Vibrator for Salt/Sand V-box spreaders. Rated at 200lbs of vibrator force. Comes with a 10" lead plug off motor. Hole Mount Spacing: 4: x 2" Includes: (4) 3/8 x 1-1/2" Mounting bolts, nuts and washers On/Off Switch 20 foot cable Reinforcement plate ( to be used inside hopper wall to prevent damage to hopper). (do not use on Buyuers tailaget spreaders)