I bought these off of Amazon:

https://www.amazon.com/12-Deerfly-Patches-TredNot-Strips/dp/B0038RO1YI/ref=sr_1_2?crid=EQEKBW0GWYDN&keywords=deer+fly+patches&qid=1660417569&s=sporting-goods&sprefix=deer+fly+patches%2Csporting%2C115&sr=1-2

I get them off or Amazon: https://www.amazon.com/12-Deerfly-Patches-TredNot-Strips/dp/B0038RO1YI

I get them off of Amazon but Wal Mart and some outdoor stores carry them too: https://www.amazon.com/12-Deerfly-Patches-TredNot-Strips/dp/B0038RO1YI