Not too big, definitely would be a challenge for anyone who isn't used to large toys.
Of course what with not being female myself, I can only speak for someone with just one hole to fill. And it certainly took some practice. Great value for the price
Wife really likes it, coupled with the Satisfier Pro 2 its pretty much a guaranteed orgasm in less than the times it takes to boil the jug and make a coffee. Probably not for beginners in Anal.