Hi. If I want to ship out enamel pins within Malaysia, what is best (and cheapest) to use? Flexiprepaid or is it possible to use Pos Express Drop? Enamel pin means it'll only be less than 200g.

Also, can we use our own packaging/courier bags for Flexiprepaid (or for other types of posting too)?

If yes, will any courier bag do, or does it have to have certain specifications? I found out that I can buy them in bulk online which is a lot cheaper than using poslaju's own envelope.

And last question -- which is the best to use if i want to send it internationally too? Safest,, in case it gets lost or anything.

Thank you so much!