Use the REVISE button on the listing (top left).
But don't worry about it too much. You are new and you will make mistakes. At least your auction listings are free.
At the moment your boxes are listed under boxes and your buckle under buckles. No worries.
More important, you seem to be copying some of your text from another seller.
Unless you are shipping from the USA this
The cost of shipping International orders by the U.S. Postal Service is based on the weight of the item(s) when packed. We can send International Packages weighing under 4 pounds by International 1st Class Mail, packages weighing over 4 pounds are sent by International Priority Mail.
is misleading. You must also indicate where the item is being shipped from as well as your own location. (Because your customer wants to know if she will be charged duty and if there will be border delays).
I would also suggest that you make the comments on shipping practices slightly smaller than your description, not larger. The customer is shopping for trinket boxes not shipping services.
