Package Contents: 30 Pcs 10 x 13.6 inch Pink Poly Mailer Envelopes Shipping Bags with Self Adhesive Strip Package Contents: 30 Pcs 10 x 13.6 inch Pink Poly Mailer Envelopes Shipping Bags with Self Adhesive Strip Premium Material: These white mailing bags are made of premium materials.Thin, durable, and flexible. Elegant Appearance: These poly mailers are white outer surface, black inner lining. Great Gift Idea: You may use this poly bag in holidays such as Thanksgiving, Christmas, New Year and etc.