12.5 x 9.5 Shipping Envelopes Document Mailers Self Seal Rigid Cardboard 50-1000
12.5 x 9.5 Shipping Envelopes Document Mailers Self Seal Rigid Cardboard 10-1000 Size – 9.5″ x 12.5″ (same size as USPS Priority Flat Rate Envelope)Quantity – select 25, 50, 100, 250, 500, or 1,000 pcsSelf-SealingHigh Quality 100% Recyclable