Build a spider that runs on salt water.
The kit contains a salt water fuel cell motor.
Its a snap together spider.
Has gears, axles and a water dropper.
Has all the instructions on how to build the spider.

Technical Details

Size (LWH): 8.1 inches, 7.3 inches, 1.7 inches
Product Details
Product Dimensions: 8.1 x 7.3 x 1.7 inches
Shipping Weight: 0.45 pounds (View shipping rates and policies)
ASIN : B00SLUJB9W