DetailsBuilding upon the multi-faceted early childhood development benefits of unit block play, each sturdy wooden truck in the Block Science Big Truck series is designed to overlay a lesson on how a simple machine works. This large wooden dump truck uses levers to move the flatbed for loading and unloading Unit Blocks. The Unit Blocks and these accompanying Block Science Big Trucks teach simple machine and STEM concepts while encouraging construction, deconstruction, teamwork, social interaction and self-expression. Dimensions: 5.5″L x 8.75″W x 14.75″H (14 x 22.2 x 37.5 cm). Suggested Age: 3+BenefitsLarge wooden (beech wood) toy dump truck with plastic parts teaches children about simple machines: levers.Movable bed for loading and unloading.Designed to be used with Unit Blocks–Unit Blocks not included.Educational benefits: Spatial reasoning, early engineering concepts and the mechanics of simple machines, social-emotional benefits including cooperation, sharing, language and self-expression.Dimensions: 5.5″L x 14.75″W x 8.75″H (14 x 37.5 x 22.2 cm)Suggested Age: 3+