50 Mixed Mailing Poly Postal Self Seal Bags 5 Sizes 10 from Each Red Ember Small to Large Mailing Bags Postage Packaging Assorted Mailers Posting Shipping Post Parcels Package Bags (White)OPAGUE MAILING BAGS Permanent self seal closure using opaque 60 micron film providing maximum strength. Red Ember posting bags are self adhesive, water and dirt resistant air sealed bags. SECURE SEAL Red Ember mailers use easy stick. Once sealed, these bags will secure your items so they can arrive safely without risk of opening or tampering. ALL SIZES Small to Large Mailing bags 6 x 9 Inch 9 x 12 Inch 10 x 14 Inch 12 x 16 Inch 14 x 19 Inch. Parcel