Build your own construction trucks! The Stacking Construction Vehicles by Melissa & Doug is a unique toy set that actually lets you piece together each wooden vehicle. All trucks are made from solid wood blocks that easily stack on top of a free wheeling base to create adorable, movable trucks. Melissa & Doug's Stacking Construction Vehicles set includes a bulldozer, a dump truck and a cement mixer. Educational Toys Planet offers this stacking activity set as a great way to help your child develop dexterity, fine motor skills, creativity and problem solving skills. It's a puzzle, a block set and a collection of the coolest construction trucks around!