Download the free app
I ordered mine off Amazon.com
https://www.amazon.com/Razbaby-009-RT-RaZ-Berry-Silicone-Teether/dp/B000JWSO9I/ref=sr_1_1?ie=UTF8&s=baby-products&qid=1231964780&sr=8-1
cheaper here -
https://www.outpatientmd.com/prodDetails.cfm?itemID=956
Re: RazBerry Teether--Look here for them
cheaper here -
https://www.outpatientmd.com/prodDetails.cfm?itemID=956