Leonardo Da Vinci Designed To Become Stronger When It Carries More Weight. If One Key Component Is Removed, The Bridge Will Fall. It Was Originally Intended As A Quick-Build, Wood Bridge For Use By The Military. Removing A Single Piece Of Wood While The.
Features
This Is A Model Of The Arch Bridge Designed By Leonardo Da Vinci The Design Uses A Self-Supporting Arch Concept To Distribute Weight Through The Full Curve Of The Arch The Kit Is A Replica Of The Oldest Known Arch Bridge Design Snap Together Assembly Of Textured Parts No Batteries, Paint, Or Glue Required
Specification
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Dimensions | 4xx17 |

Warning - California Proposition 65
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.