Building blocks for advanced children ... The wooden building blocks in 6 variants make stacking a bit tricky. Due to their special shape with 18 or 20 sides and different sized bearing surfaces, the bricks can be combined standing or lying on top of each other ... until the tower is so wobbly that the structure collapses. The building process requires a good head and a sure instinct. Material: birch wood natural or coloured lacquered Measurements: largest building block: 5 x 3.8 x 3.8 cm, smallest block 3.8 x 2 x 2 cm Age restriction: 3 years
