This exceptional wooden puzzle is divided into four layers of images, each representing a developmental stage of a hen. Each layer has a different design and a varying number of pieces, ensuring variety and enhancing children's imagination. The puzzle is placed in a sturdy board with milled edges, serving as a stable base for assembly.

The GOKI educational puzzle is ideal for children aged 3 and above. It is designed to teach children the basics of natural science through play while developing their motor skills. The materials used in production are non-toxic and environmentally sustainable. The wood comes from responsibly managed forests, including maple, beech, walnut, lime, ash, pine, birch, and rubber tree. Colors and varnishes are sourced from local small manufacturers.