Prader Orchidometer

An orchidometer is a medical instrument for measuring the volume of the testes. This is a standard set of 12 from 1mL to 25mL. The beads are handily imprinted with the volume on the side. There is a hole running through each bead enabling them to be strung together; a short length of TPU filament will fit well. There are profiles for TPU and PLA. If using PLA, a brim has been added for the smallest bead.