Build ten sleek working models of catapults, crossbows and trebuchets
Learn physics lessons in force, energy, motion, and projectiles
Build and experiment with five different types of crossbows
The projectile has a safe foam tip
Ages 8+, 32 page full color manual, 10 experiments

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 9 inch
Height : 2.44 inch
Length : 13.07 inch

Item Weight: 1.1 pounds (View shipping rates and policies)
Shipping Weight: 1.15 pounds (View shipping rates and policies)

ASIN : B01CNSPBHI