Compatible With Dymo Products 99014 Compatible Dymo Shipping Label 54mm x 101mm. 220 Labels per pack. To suit all compatible DYMO LabelWriter Printers including: Label Writer 310 / 320 / 330 Turbo Label Writer 400 / 400 Turbo / 400 Twin Turbo/ 400 Duo Label Writer 450 / 450 Turbo / 450 Duo Compatible Dymo labelwriter labels use a direct thermal printing process - so you never need to bother with messy, expensive ink ot toner cartridges. Because these are packaged in rolls you can print one label or hundreds with ease, no sheet label jams, no layout hassle and no waste. Provides equivalent quality to the original label cartridge from DYMO