Albert Einstein E=MC2 Men's Novelty Tie. The famous Einstein's E=MC2 equation, mathematical formula is given an outing in this novelty physics tie with Albert Einstein at the tip. A great tie for a Science teacher! Width at Widest Point: 10cm. Length from Tip to Tip: 144cm. 100% Polyester Tie. Albert Einstein Tie High Quality Tie Fabric Science Tie