BUILDING BLOCK CALCULATOR
Flash back to your inner architect with our Building Block Calculators. Add, subtract, multiply, and divide options could have come in handy years ago when you were trying to figure out how many building blocks it could take to build your own car or house.
Available in FOUR awesome colors - Red, Green, Blue, and Black!
Plastic. Measures 5.5 x 2.5 x 1
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