leathlwpn ~ tracking is auctomatically given at the P.O. when mailing anything it allows both the seller and the buyer a way of "tracking" the package while in the mail system. The number is printed on receipt given at time of purchasing postage and placing in mail and is "scanned" by postal employees at each destination. for additional information visit your local P.O. and ask any employee there they can explain in full. shannonahess9 ~ what a Very Unique Auction I have never seen one of these (don't buy Happy Meals very often) ~ Googled it 2007 series this could very well become a collectors item ~ Go Bidders! :)