● The new Bite n 'Chew tip from Ark’s Therapeutics is intended for use with the Z-Vibe or Double Z-Vibe. ● Designed to promote a sustained bite and improve jaw strength and stability. ● The smooth and rounded tip end can be used outside the mouth on the cheeks and lips for added stimulation. ● Sold in a set of five. ● Colors may vary. ● This item can not be returned.