Choking hazard gauge

This component is used as a "test fit" to determine the possibility of choking hazard by the US Consumer Product Safety Commission. Any loose component from a child toy intended for use under 3 years old must pass this test.
If an object fits inside (both diameter and depth) it represents a hazard. If the object is larger in either dimension then it is considered only a "potential hazard".
Technically the inside space can have an angled bottom surface, but I chose to model it as completely hollow for simplicity.