Three dimensional puzzle cube

A three dimensional puzzle cube, comprising a plurality of blocks, wherein, each block is spliced from a splicing piece, a central shell and a mounting base, the splicing piece is mounted at a top of the central shell, and the mounting base is mounted at a bottom of the central shell;

• an outer side of the central shell forms a friction surface;
• the central shell is provided with a first mating portion, and the splicing piece is provided with a second mating portion, the second mating portion being fixedly connected to the first mating portion by snap-fitting;
• the bottom of the central shell is provided with a third mating portion, and the mounting base is provided with a fourth mating portion, the fourth mating portion being fixedly connected to the third mating portion by snap-fitting;
• and a colour piece is mounted on the splicing piece, an outer side of the colour piece forms an exhibition surface, the colour piece is provided with a fifth mating portion, and the splicing piece is provided with a sixth mating portion, the sixth mating portion being fixedly connected to the fifth mating portion by snap-fitting;
• the central shell is internally provided with a plurality of positioning holes, the plurality of positioning holes are symmetrically distributed on inner side walls of the central shell about the central axis of the central shell, and the splicing piece is provided with a plurality of positioning columns, wherein each of the positioning holes has one positioning column inserted therein.