Note: The item just sold label,no include any printer! Warm Tip: Do not use any tape on top of our labels,it would cause words disappeared due to chemical reaction. Item Informations: Only 100% Compatible with Dymo 4XL LabelWriter Label Size: 4" x 6" 220 Labels Per Roll Core Diameter: 1" Core Strong Self-Adhesive (Just Peel N Stick/ No More Taping!!!!) One Hole Between Labels Application: Used for UPS,Fedex,USPS and other shipping companies. These labels are used for printing shipping labels or postage labels. Labels are perfect for oversized envelopes, priority mail packages and boxes. With a convenient roll format, you can print one label or hundreds with ease. Package: 12 Rolls = 2640 Labels.