Perifit Care: The part of the device that is meant to be inserted is 3.27 inches / 8.3 cm long, and the diameter is up to 1.22 inches / 3.1 cm.

Perifit Care+: The part of the device that is meant to be inserted is 2.48 inches / 6.3 cm long, and the diameter is up to 1.06 inches / 2.7 cm.