There are not many styles, so don't feel confused. There are only two in one, a decahedron, a cylinder, a triangle, four structures.

It's just that there are several patterns of the same structure.

077-1, 077-2 The difference between these two models is only the pattern is different, are two in one.

078 is a decahedron with only space patterns.

079 is a cylinder with only mechanical patterns.

There is no 080.

081 and 082 and 083 are triangular bodies, the structure is the same, but the pattern is different.

The following three types are 081, 082, 083 three types of triangle.