Depends on its weight and box dimensions.
Buy a digital scale, pack your item. Weigh it - round weights up.
Measure all 3 box dimensions - round up.
Then go to www.usps.com and look up the shipping rates.
Don't forget a delivery confirmation (signuature if over $250) - DC and Sig are impossible for some overseas transactions. There are a lot of issues with shipping to some countries - Italy is one of them.
Ask here for help shipping overseas ===> http://forums.ebay.com/db2/forum/International-Trading/31
Upper right corner on this page, click 'customer support'. Type your question into the input box, and click the 'search' button.
This will answer 99% of all questions posted on this board.