Tonka, Tri Stack Tread Feeder - Medium - 3.5" Keep your furry friend entertained for hours with two of their favorite things: Toys and Treats! Tri-Stack Feeder can be stuffed with treats or kibble to encourage slower eating. Made of super tough and durable Thermoplastic Rubber (TPR) that can withstand even the most powerful chewers. Comes in 3 sizes just right for your pup: 3.5 for Smaller to Medium Dogs, 4 for Small to Larger Dogs, 5 for Medium to Larger Dogs Strong as a tire, it's Tonka tough! Fill with your dog's favorite treats or dog food and watch as they tackle the challenge of getting them out! Tire tread makes for easy grip Built for the toughest pups Made to Last: Constructed from heavy-duty rubber Great for interactive games of fetch or solo play. Two of your pups favourite things: a toy and treat dispenser in 1!