Two Striper® ultra premium diamond burs and gamma sterilized Solo Diamond® premium diamond burs are made in the US. Both utilize a different shape numbering system. Find your Solo Diamond® or Two Striper® by entering any other brand shape number (i.e. 368023C, or 1923). For additional help contact Premier Customer Service or call 888-670-6100. To view the complete selection and learn more about Two Striper® and Solo Diamond® burs visit premierdentalco.