The Onyx is a Prostate Massager, which is both ergonomically shaped and artfully sculpted in black cyber glass (with a slight grey floral design) designed to massage the prostate gland. The comfortable handle makes it easy to dig in, manipulate it to the perfect area, and to hold on with ease. At only 1″ wide, this beautiful black tempered glass slides inside you like watered silk, even without lube. A massager that can use any lubricant, it is easy to clean and can be heated and cooled for varied temperature sensations. The ridged tip and bulbous ends stir even more sensations as you use it, and the rounded handle gives you more control and an easy grip.
As for the use of Cyber glass, which is a type of strong, Perspex glass, it cannot break inside the body, no matter how much squeezing and twisting you do. It will shatter, though, if you drop it from a height onto a hard surface.