Great for balance training and core function training. Size 3 sizes available made of Eva foam material. High-density, high quality. What is foam rolling? Self-myofascial release, also known as "foam rolling, " has transformed from a once mysterious technique used only by professional athletes, coaches and therapists to a familiar everyday practice for people at all levels of fitness. By applying pressure to specific points on your body you can aid the recovery of muscles and assist in returning them to normal function. Normal function means your muscles are elastic, healthy and ready to perform at a moment's notice. Foam rolling can assist in breaking up the muscle knots, resuming normal blood flow and function. Foam rollers are cross-over equipment from rehab training. They are inexpensive, lightweight and versatile making them ideal for a home workout or studio. Very simple pieces of equipment, foam rollers are put to all kinds of uses, such as stretching, self-massage, body support and stability exercises. It is a trusted tool of physical therapists, massage therapists, athletic trainers and professional athletes, used to roll through tight muscles, knots and kinks to reduce soreness and improve mobility. Regular use of a foam roller is known to provide benefits such as recovery from (or preventing) injuries, decreased muscle and joint pain, increased circulation and flexibility, improved balance and mobility and preparing the body for peak performance.