The Tetralino with extra-wide building blocks for 3D fun and high-quality board was carefully developed by holistic educators and are 100% plastic-free in a high-quality packaging - ideal as a gift! The wooden puzzle set contains two game boards with 88 building blocks including 8 spare parts in a sturdy gift box. Ideal for siblings, friends, the whole family, and for seniors as brain training! This educational brain teaser with an idea booklet promotes creativity, perseverance, and concentration in a child-friendly, colorful and simple Montessori style. An ideal wooden puzzle for preschool and as healthy entertainment at home - for toddlers and adults to have lots of FUN!