Value of Pi Coaster Set - Sandstone Round Tile 4 Piece Set - Caddy Included
This unique set of coasters bears a spiraling representation of everyone's favorite irrational number, accurate to enough places to calculate missile trajectories. These would look perfect in your scientifically-themed office or game room, and are a perfect gift for your favorite math student or teacher. They're made from absorbent sandstone, and the image is printed permanently printed on the tile - it won't run or fade.
Technicam notitia (the technical bits)
- Coasters measure 4 in x 1/4 in
- Ceramic tile with matte sandstone finish
- Cork bottom prevents scratches
- Permanent images will not fade or run
- Wood caddy box included