A fun chewing challenge with new Everlasting Treat Pucks. Comes packaged with Everlasting Treat Pucks or refill with our domed or ridged Everlasting Treats. Increase the challenge by adding smaller treats or kibble inside. Made with Virtually Indestructible Material stronger than rubber and good for strong chewers. Recommended for dogs under 15 pounds. 2.3″ x 1.1″.