Printing most window envelopes will leave you with a ruined printer, as the cellophane melts. Don’t take that chance – harness the power of your Stamps.com account and print your postage directly upon these #10 Heat-Resistant Window Envelopes!

• Special heat-resistant window does not melt when printing postage using a laser printer
• With Pull & Seal strip there is no mess, no moistening, just peel off the strip and press
• 24 lb. white wove paper provides clear crisp printing