Hydraulic Excavator Wooden DIY STEM Model Science Experiment Toy

This DIY kit lets you build a hydraulic excavator model from pre-cut composite wood parts, with no tools or glue needed. Four sets of needle cylinders imitate a hydraulic system, so the excavator can move up, down, left and right and dig. A hands-on STEM science experiment toy for kids and students in classrooms, libraries, homes or offices.

What's in the box
4 x Board, 4 x 3ml Syringe, 4 x 5ml Syringe, 4 x Tire, 1 x Screw Accessory Kit, 2 x Long Shaft, 6 x Short Shaft, 1 x Screwdriver, 2 x Cable Tie, 1 x Hose