Build a working model that can actually support your weight! -- Kit contains 23 precision-cut hardwood blocks in 6 unique shapes; pre-drilled wooden buttress in 3 sections. Includes instructions & template. -- Approximate block size: 1 1/4". Is 15" x 1 1/2" x 5 1/4" assembled. For math, technology and physics learning. -- For ages 8+

$24.95

Click to purchase.

rock mineral specimen set

-**********-