The printed label will clearly state Media Mail for the face side of the envelope and I just usually write on the back of the envelope Media Mail so it is visible on both sides. It has been a while since I shipped Media item and from what I remember there was a charge for a tracking number (I think it was 19 cents) but perhaps that has changed with the latest price increases throughout the PO system. If not free, it is just a minimal charge.

I don’t put Fragile or Handle with Care on my packages anymore. Seems the PO will see that and take it as a PERSONAL CHALLENGE to Drop, Throw, Crush, and try the damage the package any way they can when they see Fragile. I had this happen on an irreplaceable working tube radio I sold from the 1940’s and while I had it packed right and padded on all sides, the PO must have taken it up 20 feet in the air and dropped it MULTIPLE times. When the buyer received it, they knew it would be a problem and took pics of the box before opening for proof. Inside the radio was all busted up and wooden chassis torn from the inside walls of the case. Lucky I had insurance (and a buyer who understood that items get damaged in transit) but PO only pays for the value of the item (and not the ship cost) so I had to refund the buyer for both and was out the cost of shipment, even though it was not under my control. That is just wrong. Mark items Fragile at your own risk.