The Hubelino puzzle combines classic puzzle fun with sturdy stud building blocks. With 35 pieces, a colourful construction site motif is created showing a blue excavator, a concrete mixer and hard-working construction workers. The blocks are 100 percent compatible with common building block systems and can be put together stably. Assembling the puzzle playfully promotes children's logical thinking and hand-eye coordination. Made in Germany, this interlocking puzzle offers a grippy feel for little hands.