The Crystal Cup insert for A10 Cyclone attachment is designed for those who would like more stimulation than the original Medusa Head Cup and tight for R-1's A10 Cyclone Attachment. The entrance has a diameter of 1.25 inches which may be too tight for some individuals so please measure yourself to make sure this insert will work for you.This is the separate insert for A10 Cyclone. *Rends' R-1 Controller and A10 Cyclone attachment is needed for this product to operate (Sold separately)
