4 Rolls Dymo compatible 30321 shipping and postage labels(1-2/5" x 3-1/2",36 x 89mm) 260 Labels per roll for Dymo LabelWriter SE300, CoStar LabelWriter XL+ 100% compatible with Dymo Label writers Adhesive: Self-sticking adhesive Includes:4 rolls Dymo compatible 30321 label roll Size: 1-2/5" x 3-1/2" (36 x 89mm), 260 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+