Product is huge! I thought id be ok but the material is somewhat soft so I just couldn't manage to get it in.
My Ass Servant measures 12.25 inches circumference which is 3.89 inches diameter. It's slightly larger than specified on the packaging.
I had a go with it after warming up with the American Bombshell - Shellshock Destroyer small, then Belladonna's Bitch Fist. It's firm but when you start to add pressure is squishes down a bit and makes the toy a bit wider. I put all my weight on it and used a lot of lube. I used an applicator to squirt lube inside as well as covering the toy. This helped so much. You can buy applicators from ATMS and I recommend buying one.
I can insert the cyclops dildo which is 11 inches circumference or 3.5 inches diameter. However this was quite a bit more. I didn't get the whole toy in but I'm excited that I have a challenge. No smell with the product. No suction base but its rubbery base does hold in position with no slipping. I bought it on sale for a great price. If your working up from 3.5 inch toys then you must buy it.
A great toy for moving on to bigger and broader toys, sturdy with a nice amount of flex in it