1. Material: plastic 2. Press to slide forward with inertial assistance 3. Movable joint design to simulate the operation of construction vehicles 4. The surface is smooth and polished 360 degrees, no burrs and no burrs, round and does not scratch hands 5. Made of sturdy material, resistant to falling and not easy to break 6. Dimensions: 15 x 6 x 9.5 cm 7. Product net weight: about 77 grams per piece