Engineering & Stress Blocks
These 2" x 8" balsa blocks are used in "Engineering and Stress Analysis Module." They have a 3..
$1.19 $1.89
These 2" x 8" balsa blocks are used in "Engineering and Stress Analysis Module." No hole drill..
$0.94 $1.39
These 2" x 8" balsa blocks are used in "Engineering and Stress Analysis Module." 3/8" hole dri..
$1.64 $2.59
Bridge Building - "B" size graph paper with 1/4" grids used in our bridge building class packs..
$11.99 $18.99
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