ARK's Z-Vibe® is an innovative vibratory tool for oral motor therapy and beyond. Use it to normalize sensitivities and to improve a variety of speech and feeding skills. The Z-Vibe® is highly recommended for individuals with low oral tone, oral defensiveness, and/or texture aversions who need sensory oral motor stimulation. Made in the USA out of medical grade materials. (Please note: if you're looking for the DnZ-Vibe, it is now simply called the Z-Vibe).