Can be fed in traditional bluebird feeders or on a platform feeder. To adapt bluebirds: start by putting a small amount of nuggets on feeder ledge. Once discovered, move the nuggets inside the feeder. Packed in resealable bags. Size is 27 Ounce. Dimensions are 2.8 X 8 X 9.5 Rendered Beef Suet, Peanuts, Corn, Raisins 27 Oz. UPC Code = 018222005260