Big Bang Theory - Knock Formula T-Shirt
63561-2X
- Regular Price
- $17.95
- Sale Price
- $17.95
- Regular Price
- $24.00
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Sheldon poses against the Fibonacci spiral in a Lantern-inspired graphic on the front of this green, 100% cotton t-shirt from the Big Bang Theory, with his tradmark door knock mathematicized on top. You may not know the math, but you'll know the knock for sure.