Disassembly and assembly of construction vehicle excavator DIY nut Building and Construction toy Features: Construction Sandbox Toy Trucks SetEngineering sand toys,Including Road Roller / Bulldozer / Excavator / Drilling Truck. The reduced version of the construction truck can better stimulate kids curiosity and provide them endless fun. Great toys for 3 4 5 year old boys who loves both construction and building toys. Learning STEM Take Apart Toys - Kids can take apart and build the kids beach sand toys again and again.Well improved hand eye coordination, fine motor skills, logic and stimulate the imagination skills. It also encourages patience and a taste of engineering at a very early age.Let's kids learing from playing Creative & Colorful Design- The colorful sandbox toys car better takes kids into the world of real engineering working,Suitable for both indoor and outdoor activities.Resistance to crash, A highly recommended birthday present, gift ideas for kids, travel beach toys, party favors. Safety Sand Toys For Kids- The outdoor construction toys is designed with high quality and durable non-toxic plastic.Each kids toys car is designed to be very smooth for kids to build up.All our toy trucks are certified to meet US toy safety standards and ensure it safe for children. Ideal Kids Gifts- Design with a beautiful package box make it's a great toy gifts for 3 4 5 6 year old boys girls.Better choice gifts for all kinds of the festival (Easter, Christmas, Valentine,Halloween, Thanksgiving, New Year). Specification: Material: ABS Size: about Excavator and drill: 20.5x6x7.5cm Road roller, bulldozer: 13.5x6x7.5cm Package List: 1 x Disassembly and assembly engineering vehicle 1 x screwdriver