Yes, Registered post had tracking number, the cost is $3.50 on top of the postage.

I bought them in a box of 50, its cost $155 ($3.10 each)

Most of my items are sent as the large letter with registered label (With tracking number) , I used to sent without any tracking but lately just get sick of the buyers that tried to claim ....Item not receive...but i still risk to sent some of the low value items without tracking, if they claim to not receive it,,,, then its only small money to refund....