High Anti-Static Coefficient -The internal and external anti-static coefficient of the bag is above 9th, which is higher than the 6th to 8th power of others seller. Zip Lock Design - Resealable and durable.High quality layer bone strip seal to prevent water and moisture.Anti static sealing bags has high sealing performance,can be vacuumed to prevent oxidation of electronic components. Large Size ESD Bag - Meet your need,large size 11x13in/28x33cm perfect for motherboard,graphics,video card,LCD screen and other large size electronic components.cards.The electronic bag also can be used for small size electronics parts storage,such as hard drive,GPU,RAM,HDD,I/O memory card,earphone, button battery and so on. Premium Material - CPP+PET double-layer composite material, anti-static double-sided layer,with aluminum plating film, thicker material,more toughness and durable. Widely Used Anti Static Bags-What you get:10pcs large size 11x13in/28x33cm anti static bags for motherboards and more, come with 10pcs antistatic labels.YIMIKE anti-static bag not only for electronic,also suitable for storaging of daily necessities.