Dano2's Circus Teethers are made in the USA out of the same medical grade materials that hospitals and dentists trust for use in their equipment. Each set contains three variable sized rings (monkey, seal, and lion) that fit snugly into a stylish compact case. What's more, the rings are manufactured in a class 7 cleanroom environment, so you can be sure that what goes in your child's mouth is medical grade all the way.