Use cation selling Detectors. I sold my 5900 di pro sl .I paid to ship across the country. I sent a whole package of stuff ,scoops books, and a perfect whites 6900 di pro. well buyer claimed the machine did not work well enough after a week. So he had pay pal reverse the purchase .Then i never got the machine back. The only recourse paypal gave was for me to contact the police department across the country and file a claim against the buyer. Do not use paypal to sell anything. The buyer can reverse the purchase and keep your Item. Use anything but Paypal. My loss $700.