Mark postage on more than standard white envelopes thanks to these handy permanent postage meter labels for Personal Post Office™. Affixing correct postage becomes a breeze. Simply print the postage information on the label, peel and apply to envelopes, mailing tubes and packages of all sizes. Permanent adhesive makes sure the label stays put while your mail is in transit. With enough space to include your company logo or a custom message, these labels will do the job every time. Shape: Rectangular; Label Size - text: 1.78 x 6; Label Color(s): White; Color Family: White.