Concentric sliding shape puzzles for little ones

Concentric shape puzzles.The sliding is fidgety and the completed puzzle can be picked up by the base.Each shape is split in 2 files:* The base, suffixed with "Base" (ex. CircleBase)* The sliding pieces in a single file with plural (ex Circles) There are 12 shapes: circle, cross, diamond (rhombus), flower, heart, hexagon (the bestagon), oval (ellipse), pentagon, rectangle, square, star, triangle.