Jiffy Padded Mailer, #1, Paper Lining, Self-adhesive Closure, 7.25 X 12, Natural Kraft, 100-cartonHeavy duty Kraft mailer features double folded corners and a double glued bottom. Uniform padded interior keeps fragile contents snug and cushioned. This product was made using wood sourced from a certified managed forest. Self Seal FlapConvient Peel and Seal closure. Seam Type: Side; Flap Type: Square; Trade Size: #1; Security Tinted: No.