LabelPros 30256 Dymo Compatible Shipping and Postage Labels(2-5/16" x 4") 300 Labels per Roll for Dymo Label Writer (12 Roll 30256 White Shipping Label Roll) 100% compatible with Dymo Label writers Adhesive: Self-sticking adhesive Includes:12 rolls Dymo compatible 30256 label roll Size: 2-5/16" x 4", 300 Labels per roll Compatible Printers:Dymo LabelWriter 330, 330 Turbo, 400, 400 Turbo, 450, 450 Turbo, Dymo LabelWriter Duo, Twin Turbo Dymo LabelWriter, Duo Dymo LabelWriter EL60, Dymo LabelWriter SE300, CoStar LabelWriter XL+