Im selling a tennis racquet on thee usual auction site. What is the best way to safely mail a tennis racquet that is strung? Is there usually the right sized box at a UPS store or a post office, and are packing peanuts enough, or any other cushioned material? If someone has some experience with this, let me know. Im selling the racquet with strings and obviously would like to assure it gets to where it's going in the same exact condition it's already in.