I had the original, tossed it when it developed cracks (wrong lube) bought the new Vac-U-Lock version and it's 2cm bigger in diameter! Feels amazing once you get it in tho. :)
I have this large American Bombshell too. And it's little brother. I take the little one easily buy I must get the large one out and keep working in into my sissy faggot asshole until I can swallow it all and hold it in.