A handcrafted solid wood shape puzzle brings joy and excitement to children while simultaneously developing their fine motor skills and concentration. 

Recommended by the Estonian Montessori Association: 

The puzzle consists of three knobbed circles of the same color, with the varying factor being their size. The child's visual perception develops as they learn to assess the sizes of the circles and arrange them in order. Working with knobbed puzzle pieces supports the development of a proper pencil grip, strengthens hand muscles, and enhances concentration skills.