Rex London Make Your Own HYDRAULIC DIGGER TRUCK. Create your own wooden hydraulic digger with this cool DIY kit! This kit contains everything needed to build a model digger truck that uses hydraulic power to raise and lower the front scoop. Not only fun to build but also a great way for children to learn the basic scientific principles of hydraulics. A great gift for creative kids who love to make experiments! Instruction booklet included. Product Materials: plywood, plastic (PP), plastic (PVC), rubber, wood, metal, and adhesive. Measures approx. L 32 x W 9 x H 14 cm once fully assembled. Package Size: 16.5 x 5.5 x 21.5 cm. Recommended for children age 8 years and up. Caution! Not suitable for children under 3 years old. Choking hazard due to small parts. Please ensure all instructions and warnings are read carefully before building the model. Some of the metal components might have sharp edges, so adult assistance is required when building and using the model.