Measuring 4 1/8 x 9 1/2 inches, this #10 envelope is an ideal choice for organizing various documents-particularly business checks, invoices, and other professional paperwork. The envelopes feature a windowless, blank design, allowing for easy personalization through printing or label application. Whether you are printing addresses for bulk business mailings or quickly handwriting addresses for everyday home use, these envelopes are perfectly suited for the task.This design significantly streamlines the process of mailing invoices: simply peel off the backing strip and press to seal-no glue sticks or moistening required-helping you save valuable time when handling large volumes of daily business correspondence and personal mail. Each box contains #10 envelopes, providing a convenient supply for long-term storage and use. It is the ideal envelope choice for both home and office environments. Weight: 6.49 lbs.