14 1/4 x 20 - #7 Self-Seal Bubble Mailers 50/CaseOur bubble mailers are cushioned with a 3 16" thick bubble lining along the inside wall to protect your products against damage. The reinforced self seal flap features a wide strip of adhesive that stays closed through the roughest deliveries. With its air bubbles, our bubble lined mailers are one of the lightest weight mailers available (60% 70% lighter than paper padded bags). Helps lower your mailing costs!