Constants Coaster Set

For the one who's obsessed with numbers!

A set of four coasters featuring different mathematical constants surrounded by its digits (to as many decimal places as could fit).

pi, Euler’s number, golden ratio, Feigenbaum constant

Designs are printed on a heat-resistant, waterproof, FDA approved food-safe material called Pet-G with a layer of cork at the bottom for a non-slip grip. 

The perfect set for your office desk or kitchen table. Makes a great gift! 

Size: 3.75 x 3.75 x 0.125 inches
Quantity: 4 coasters

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