KELVIN® Tug-of-War Competition Vehicle Starter Pack By altering gear ratios, vehicle weight, traction systems and wheel sizes, students build vehicles with the greatest pulling power. They can try to move the greatest weight or pull another vehicle across the threshold. A fun learning experience. The... MSRP: Was: Now: $89.95 Add to Cart
KELVIN® Tug-of-War Reusable Vehicle Kit includes: Tug-of-War Car Platform, [8] Traction Bands, [4] Wood Wheels (1-1/2 x 2-1/2 in.), Gear Box Kit, Motor, Wires and Hardware (screws, nuts, etc). MSRP: Was: Now: $45.95 Add to Cart
