this item cannot be bundled as it is at the 5 lb limit when packaged 19x24 Poly Mailers Envelopes Shipping Bags White 2.5 mil 50 pack bulk mailers Brand new mailers 50 mailers The size 19x24 poly mailer bags are high quality tough, puncture, tear, and water resistant. These 2.5 mil co-extruded shipping bags are light that saves on shipping. Labels, ink, stickers, notes and stamps adhere easily to these mailing envelopes. The white exterior and silver interior layer hides item pack inside and provides confidentiality. Pressure sensitive adhesive strip is tamper evident with industrial strength seal that provide tight bonding, closure, durability, water and dirt resistance. They are ideal for shipping bags for non-fragile items. They do not feature perforated opening and they have no bubble lining. They are made of pure plastic resin with no odor or smell.