Dogsavers PawTrack Tire Mini 3.5" by Mammoth Pet Products, are made from super-durable synthetic rubber for heavy-duty chomping and interactive play. These toys are bright candy-colored and candy-scented. Dogsavers are great for more than chewing! They are the perfect toy for interactive play and education - training wheels for your dog! Bond with your dog while providing him with the exercise and discipline he needs to stay healthy and strong.