Sold as 300/Pack. Each roll prints 300 labels (2 5/16-inch x 4-inch each). Quickly create perfect shipping labels with your DYMO LabelWriter label printer. White Labels. Direct thermal printing technology does not use expensive ink or toner. Compatible with: DYMO LabelWriter 450, 450 Duo, 450 Turbo, 450 Twin Turbo, Wireless, 4XL, 550, 550 Turbo, 5XL. Strong self-adhesive backing. Ideal for printing shipping labels. Packed in a roll, so you can easily print one label or hundredsno label waste!.