This new back butter tool is made by a company called Primo Tools.
Here is a look at the bottom side of the Back Butter Buddy.
If you would like more information on the back butter buddy and Primo Tools visit their webpage here.
To find out where to order locally or online contact
Cell: (949) 295-4006
If for any reason you are not satisfied with any Primo Tools product, we will refund your purchase price. No questions asked.
22362 Gilberto Street, Suite 215
Rancho Santa Margarita, CA 92688
Some testing in regards to the benefit of back buttering tile.