The Pro-Tec Plantar Fasciitis Massage Balls are made from hard maple wood to help alleviate conditions of plantar fasciitis. Place one ball on a flat, non-slip surface, such as carpet, and roll entire foot over the ball, focusing on the areas of pain and tightness. Benefits: -Roll out tightness and promote flexibility in arch and forefoot -Target compression into deep tissue to expedite the healing process -Available in two sizes to focus on either arch or heel and forefoot