Dymo-compatible 1744907 Shipping and Postage Labels for 4xl (4" X 6") -- (7 Rolls; 220 Labels Per Roll) Buy this genuine Labels123 product with confidence . 100% satisfaction guaranteed. Label size: 4" x 6" | Rectangle | White | Direct Thermal| 220 Labels per Roll Item SKU: DL-1744907. This listing is for 7 rolls. Labels are smudge resistant and water and oil resistant. All temperature, strong permanent adhesive is excellent for all general purpose labeling applications. Each roll is individually packed into a protective black polybag to protect against moisture & light. These thermal labels work well with USPS, Endicia; Click-N-Ship, Pitney Bowes Shipstream Manager Deluxe, eBay, PayPal and other popular shipping/mailing software. Saves Money- Labels use direct thermal printing process so you never need to bother with messy, expensive ink or toner cartridges. Compatible with: DYMO Printers: 300, 310, 315, 320, 330, 400, 400 Duo, 400 Twin Turbo, 450, 450 Duo, 450 Turbo, 450 Twin Turbo, 4XL, EL40, EL60, SE300, SE450  CoStar LabelWriters: XL, XL+, BC, BC+, TURBO, SE200, SE250, ACII 200 / ASCII 250.