JACKYLED Pack of 50 8x12cm(3.15X4.72inches) Antistatic Bag Resealable Protective for Memory Card Earphone Small Electronic Device Anti Static Bag PREMIUM QUALITY: 50-Pack anti-static resealable bags are made from high quality Polyethylene Terephthalate (PET) which has multiple layers including a silvery metallized film for protection from mechanical and electrostatic damage. MULTIPLE USES: The size of each bag is 8cm x 12cms(3.15"x4.72") which can be used to store a variety of items such as memory card, earphone, button batteries and other electronic parts. SEMI-TRANSPARENT: Things inside the bags can be easily seen and easy for you to find which bag to open when you need the things. If you need other sizes, please search B00P902NME(3.9X5.9inches) or B00P8ZU66A(5.9X7.9inches). RE-SEALABLE: They can be multiply and repeatedly used. The zip-lock pack can be opened or closed multiple times to keep or remove electronics for storage even for a long-term. CUSTOMER SATISFACTION: We guarantee EVERY customer's happiness and 100% satisfaction. 60 days changing or refunding without reasons. JACKYLED Products are sold and shipped by Jackybrand. If you purchase a product from another seller, please request a refund as it is a counterfeit. JACKYLED is the only Authorized Dealer of Jackybrand products.