Russian matryoshka dolls name key ring

A matryoshka doll, also known as a Russian nesting doll, or Russian doll, is a set of wooden dolls of decreasing size placed one inside another. The name "matryoshka", literally "little matron", is a diminutive form of Russian female first name "Matryona" or "Matriosha". A set of matryoshkas consist of a wooden figure which separates, top from bottom, to reveal a smaller figure of the same sort inside, which has, in turn, another figure inside of it, and so on.