50PCS Antistatic Bags: Includes 50PCS 15x20cm/5.9X7.9inches Antistatic Bags, which can be used to store all your electronic parts and gadgets. | Ideal Size: The size of bag can storage up to 3.5" Hard Drive exactly. | Semi-transparent Design: These antistaic bags are semi-transparent with zip lock design. They are resealable and you can easily see the contents inside. | High Quality: The bag is made of Polyethylene Terephthalate (PET) that is non-toxic and free from extraneous odor. It can prevent static electricity effectively.