The Bergan Booster Display contains 6 pieces. The display includes 2 each of the Dog Comfort Hanging Booster (small, taupe), Dog Comfort Hanging Booster (small, black) and the Dog Comfort Sitting Booster (medium, black). Pet Booster Seats are a great way to contain your pet while offering them a clear view of the road ahead. Both Booster Seats are quick to install, easy to adjust and offer a soft interior for a comfortable ride. The Hanging Booster is adjustable for different heights while the Sitting Booster sits directly on your car's seat.