This chastity cage also has the option of using a steel ring with spikes. the tips are not sharp, but very unpleasant, and disturbing. my wife, when she wants to punish me, she makes me wear the Spike ring without the Cage and masturbates me. It's a very frustrating feeling. The pain I feel is not unbearable but it prevents me from losing my erection and reaching orgasm. A long pleasant torture.