charge more, say maybe 160L$, for 6 tights with all the appliers included for new products? Not sure if people prefer to pay less and buy only the bits that they need.

Tough call. But I don't think 160 is high for what you make, even without appliers. So I'd totally pay that if all appliers were included. But you could always do "with appliers" and "no appliers" and see.

Thank you both for taking the time to tell me your opinion! I think i need to think about it some more!