Wooden Rainbow is a must have toy at home. The Rainbow stacker is for all children of different ages. Kids will find a way how to play with it. It can be a tunnel, fence, bed, bridge, anything your child can imagine. The Rainbow is made of high quality hornbeam wood. This toy helps children develop fine motor skills, attention concentration, counting skills, and patience, imagination. The stacker is great as a pyramid and as a balance toy. All MinMin Copenhagen toys are handmade, there will be unique variations in each piece including color and wood grain.