New-Size #4 9.5x14.5 Kraft Bubble Mailers with Self Seal - K-4-100 (21x15x14 inches) Mailers are self-sealing for easy packing with a tamper-evident Completely opaque for content privacy and professional appearance These mailers are 100% recyclable. Use for all of your shipments with all carriers including UPS, FedEx, DHL, USPS and more Air bubble cushioning along with the rigid kraft paper exterior provide exceptionally light protection