Ark's probe, designed by a speech pathologist, is a new tool to be used for oral motor treatment and sensory input. Constructed of sturdy, medical grade plastics, it is latex-FREE and the tip won't come off! Use it to stimulate the gums, palate, and tongue through stroking and by applying pressure. The textured surfaces provide tactile awareness and sensation. Material and color are FDA approved. CAUTION: Even though this product works very well as a bite stick, it is NOT a chew toy. It is recommended to be used under adult supervision. Each probe should only be used for one individual. Check periodically if replacement is necessary due to wear and tear. Sanitize by scrubbing with soap and water. This item is not returnable.