Simple, elegant, and smart...this pi necklace is mathematically proven to be the perfect accessory for every occasion. It features your choice of a gold or silver colored steel pendant hanging from an 18 inch gold plated chain, 18 inch sterling silver chain, or adjustable black leather cord with ceramic beads. The pendant measures about 2/3 inch and will never tarnish.

Perfect for:

• Mathematicians or math aficionados
• Engineers
• Architects
• Rational and irrational people alike
• Anyone cool enough to celebrate Pi Day