Bought this onahole together with a 15 and 20 bucks onahole. I am positive about the other 2, but the chitubira... when I put my stick inside, the manufacturing "tears" this onahole has pretty much instantly turned into holes. 3 holes formed after the initial insertion. EXTREMELY bad build quality.
Cheap and light, so good to saturate your order to get the most product for the shipping cost, but whatever material this is, AVOID IT.
I threw it away. pay more and get the Boku Ona x The Best Potential, or at least, that price class.