For one to two little Researchers The ideal Explorer-Set for home. Children can follow the easy-to-understand visual construction manual to build the mobilo-mill themselves. The mobilo model guide contained within every box will inspire kids to build their own creations. Also the practical storage-box serves as a robust sand container. Ideal for 1-2 children For fine, dry natural sand Incl. 1 funnel with adjustable flow and 2 paddle wheels Delivered in bucket with full instructions and 12 further construction possibilities The buckets come in assorted colors. Delivery does not include sand.