The Pearl Prolong Cock RIng isn't just another pretty adult toy...the silicone encased pearls serve a pleasure and safety purpose. The pearls move freely inside the sleeve and allow the cock ring to roll up and down his penis for erotic stimulation. Not only does this feel great and help maintain longer, firmer erections, but it allows him to wear the ring for even longer because this movement renews blood flow for improved circulation. Use with water-based lubricant only.