Paper address labels print directly from the roll for simple use. Print labels one-up on in a batch. Compatible with DYMO LabelWriter printer EL40, EL60, CoStar LabelWriter XL, 300, 310, Turbo and CoStar LabelWriter XL Plus, Turbo, 320, 330, 330 Turbo, 400, 400 Turbo, Twin Turbo, DuoTurbo and Seiko SLP 120, 240, Pro, EZ30, and Plus.