The Bob-A-Lot recently won the bronze award for best new product at the HH Backer Pet Trade Show. It can be filled with treats or food in a top or bottom chamber, and then must be manipulated by the dog's nose or feet to extract the goodies inside. Both the top and bottom chambers feature adjustable openings to regulate the difficulty in which the dog removes the treats. It holds up to three cups of food in a variety of sizes, and is a great way to feed and exercise your dog. The Bob-A-Lot is made from a durable polymer with an anti-slip coating on the bottom. One size is appropriate for dogs of all sizes.