White multipurpose labels make it easy to print one label or hundreds for all of your mailing, shipping and labeling needs. They are just the right size to keep your files neat and easy to find. Direct thermal printing process means no need for messy, expensive ink or toner cartridges. Labels are compatible with Dymo LabelWriter 4XL, 330 Turbo, 400, 400 Turbo, 450, 450 Duo, 450 Twin Turbo, 450 Turbo, SE 450 and the Desktop Mailing Solution.