If you're a fan of wooden dildos/toys, and you like double penetration, then this baby could possibly be for you. Really, there's nothing wrong with it at all. As a fan myself of wooden products, this one is perfect for anything—double, anal, oral, and vaginal penetration—and if you don't like it for its recommended use, play with it in other inventive ways.
For the double-ended part, I couldn't at first tell why this one was considered to be double-ended. It looked almost like the sort of toy that the
Little Su is—a clitoral stimulating toy with penetration. But of course, it
can be used for double penetration if one of the users enjoys shallow insertion. It could also be used for anal penetration, oral play, or whatever else you think that it might be good for.
If you're going to use it for anal penetration, since it does have that "double-ended" feature, it's easy to use and, if careful, shouldn't be lost inside of your tubes. Vaginal has no problems either, just be careful with what you do (like you should always be, with such delicate places).