I just googled them and found it at their site.
The overall shape looks pretty great. The head has a nice and simple design, and it has that narrow base for comfort between the cheeks over the course of extended wearing. There are pros and cons to the way the neck gradually widens to the base, however. The good news is that this gradual curve is a design that makes it a comfortable plug to sit on. The bad news is that there is over an inch of material from where the anus will be, the narrowest part of the neck, to the base. The base will not be flush against the body like it is with, say, the stainless steel butt plugs with the round jewel in the base, that you have probably seen. The base may stick out from between your cheeks like a tail while you are standing/walking around. That is the con for such designs. I am not a fan of silicone personally, but to each their own. I think glass is the smoothest and easiest to remove after extended wear, when most of the lube will have been already absorbed by the body. I also prefer the weight of stainless steel or glass. The silicone is much lighter. And stainless steel and glass do not wear out or develop a smell over the course of time. People may find stainless steel and glass more intimidating than silicone, but the stainless steel and the glass toys are actually a bit smoother. If you are looking for a plug, I can recommend some sources for stainless steel ones as well as glass ones:
As you can see, the above plugs still have that round base that some people might find uncomfortable after some extended wear. So hear are some sites that do custom orders:
steelwerksextreme order page
steelwerksextreme example of plug with narrow rectangular base
You could order something similar in glass from a certain artist on etsy. He already makes a few different plugs with a T-bar style base, among his many other creations.
* I am not affiliated with any of the above sites