Good day guys, I wanted to post a stuff from Penang to Sarawak. I saw there are poslaju prepaid envelope for RM11 something and the Pos Parcel for RM7 up to 2KG.

How can I use the Pos Parcel instead of the RM11 poslaju envelope? Is it that I pack the stuff on my own and send it to them for weighings and pay?

Please advise, tqvm in advance!