Chirp Foam Roller Wheels Set of 3 Back Pain Relief Muscle Therapy 7 11 13 Enhance your workout experience with the Chirp Wheel set of 3 foam rollers. These multicolor foam rollers are designed to relieve back pain and aid in muscle therapy. The set includes 7", 11", and 13" wheels, perfect for home use and a variety of workouts such as yoga, weight lifting, and running. The Chirp Wheel features a unique hollow design and indentation for spine support, made of foam and plastic material with a medium/hard density. This wheel is suitable for targeting the legs, back, and other muscle groups, providing a comfortable and effective workout session. Purchase the Chirp Wheel set today to enhance your fitness routine...OZs