6 Rolls Dymo 30915 Compatible 1-5/8" x 1-1/4"(41mm x 32mm) Endicia Internet Postage Stamps Labels Replaces: Dymo 30915, Dimensions: 41mm x 32mm(1-5/8" x 1-1/4"), Permanent-Adhesive, Labels per Roll: 700 stamps Compatible Dymo Label Writer Printers: :300, 310, 315, 320, 330, 400, 400 Duo, 400 Twin Turbo, 450, 450 Duo, 450 Turbo, 450 Twin Turbo, 4XL, EL40, EL60, SE300, SE450, CoStar LabelWriters: XL, XL+, BC, BC+, TURBO, SE200, SE250, ACII 200 / ASCII 250 ATTENTION:Labels will work with PAID accounts that do not require activation codes. DO NOT BUY THESE LABELS IF YOU HAVE A FREE ACCOUNT. Guaranteed The Best Quality You Will Find in The Market:Our papers are of superior quality, and are your best choice in the market, for such an affordable price. They don't go yellow, they don't smudge, and there are never scanning issues!