Featuring patented Sliding Ring Technology, this exclusive Thunder Plug is purpose-built for dynamic anal stimulation! The internal bulging ring glides up and down the middle of the silicone shaft to rub your insides and please your depths, anus, and everything in between.Enjoy 3 speeds and 5 patterns of vibration alongside 5 ring sliding speeds to grind and buzz your ass! Control and customize each function combination to find what works best for your booty – perfect for solo enjoyment or playing with a partner. Rechargeable via included USB charging cable for endless backdoor fun!The slight ergonomic curve peaks at the tip for accurate stimulation on sensitive zones like the prostate, accentuated with gentle ridging for increased pleasure. The velvety shaft is designed with a 1.5 inch diameter and 7 inch insertable length for a gratifying fill and reach, perfect for experienced anal players who want a kinky new way to satisfy their ass.Designed with IPX5 waterproofing for ease of cleaning and shower friendly fun, and constructed with a premium velvety silicone formula that is phthalate-free, latex-free, and body safe for worry free anal fun so you can enjoy with confidence!