The fantastic Chew Stixx tough bar is one of the toughest oral motor therapy chews on the sensory market. The durable yet tough material of this Chew Stixx Tough Bar makes it the ideal chew stick for heavy chewers whom chew through all other chew toys. The Chew Stixx Tough Bar has two distinct textures which both simulate food and help those with TMJ issues. When used correctly the chew stixx tough bars allow children to enjoy a safe and bacteria free chewing device rather than shirts,pencils and fingers/ A great oral motor work out for children whom crave chew textures and sensory input and also doubles as a great hand fidget. The Chew Stixx Tough Bar is designed by Therapists this chew simulates the various food textures so children whom have sensory issues with some textures when eating or chewing will develop a new comfortable tollerance to chewing and texture. Yhe Chew StixxTough Bar is extremely durable but should be replaced at first sign of wear. All materials and colors are FDA approved and free of BP and phthalate additives. For kids or teens who like to nibble, chew moderately or bite (aggressive chewers). Age 6 months+.