The Enhancer Glow Rings are 100 percent silicone, durable, thick and firm, yet soft to the touch and stretchy for comfort during wear.  Three rings, each of a different size, are individually packaged within each set.  All glow in the dark to add some fun to your bedroom!  These rings may be used as a traditional cocking, around the testicles, as harness rings, and more. Please clean before and after each use with toy cleaner and enjoy with water-based lubricants.