Ramik Mini Bars are ready to use, and perfect for making multiple bait placements by hanging on wire, pegging, or securing in bait station boxes. Kills Norway rats, roof rats and house mice in wet or dry areas. Contains the active ingredient Diphacinone. Mini Bars. All Weather. Size - 4 lbs. Dimension - 20 x 10.5 x 11.75. Item Weight - 4 lbs.