Safety 1st Small Object Choking Tester;

Our Choke Tester, also known as a Small Objects Tester was designed by the CPSC, Consumer Product Safety Commission. It allows you to test the safety of small toys, toy parts, or other small objects. If an object fits entirely inside our Choke Tester, then it's a choking hazard to your child. A child safety must if you have children under three years of age.