Big Bang Theory – Knock Formula T-Shirt
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.
| Size | SM, MD, LG, XL, 2XL |
|---|---|
| Color | Green |
We accept returns on non-sale items that are in original packaging, unused, and unwashed within 30 days of receipt. Please follow our returns/exchanges process below. If items do not meet our requirements for return, they will be shipped back to you in lieu of a refund. Shipping and handling charges are non-refundable (exceptions may apply).
Returns & Exchanges Process: If item(s) fit within our returns guidelines found in the Returns. Please allow 7-10 business days for the credit to appear on your account after your return is processed.
