OfficeSmartLabels Dymo 30915 Compatible Stamps Postage 700 Labels - 6 Rolls for DYMO LabelWriters 400 450 Twin Turbo Duo SE450, 4XL Printer Customers that are using the FREE DYMO STAMPS software will NOT be able to print more than 200 labels without an activation code.Please see more information in description Compatible with DYMO 30915 POSTAGE STAMPS / Dimensions 1-5/8 x 1-1/4 6 Rolls / 700 labels per roll / 1 inch core High quality, bright white direct thermal paper and Strong Adhesive/ Water Resistant / Color: White