ARK's Bite Tube is a hollow chew tool with a different diameter on each end.  Use it as a safe outlet for anyone who needs to chew.  It can also be used as an oral motor tool to work on jaw strength and stability.  The tube-like extension is perfect for individuals who want their chew tool to "collapse" more, whether as a sensory chew and/or in feeding therapy.  Often even 'aggressive' chewers are seeing the oral feedback that something hollow provides rather than firm bite of one that is solid.  These are idea for that.