Kraft Bubble Mailers Padded Envelopes Bags Shipping Supplies Packaging Materials (#03 14x20cm Usable Space: 12x16cm), 100 Pcs 100PCS KRAFT BUBBLE MAILERS Material: Kraft Size: Dimensions: 5.5"x7.9" Usable Space: 4.7"x6.3" Multi-functions for mailing and package 1 Inch = 2.54 cm