【Unique size】 10 Pcs-Pack, great packing bag for long valuable goods business. 【Unique size】10 Pcs-Pack, great packing bag for long valuable goods business 【STRONG SELF SEAL】The large poly bobble bag with a strong self-sealing adhesive strip, stick to themselves making it easy to close them and not require tape and are sturdy 【LIGHT WEIGHT】The big shipping bags for small business are light enough 【SAFE SHIPPING BAG】Great for added protection shipping valuables 【HIGH STRENGH】The poly mailers are made from high quality material which are provides a high strength, sturdy closure that is water and dirt resistant. The material is thicker and therefore hold up better through the mail handling process.