HRX package Premium Anti Static Bags is large enough to fit most of large electronic components like large graphics card, logicboard, motherboard, laptop keyboard - Definitely make your packages look professional - Cheap insurance if you store or ship a lot of valuable electronic goods. - Also great for securing electronic components, PC parts, laptop components etc when not in use Plastic type: PE The proportion of pure material and reworked material: 100% new material Size: 12 inchx16 inch/ 30.7cmx40cm Package Included: 20pcs/set Antistatic Storage Bag with 20pcs antistic caution sign labels Tips: - There may be a little error (±0.3 inch) of measuring due to manual measurement. - Please note that this anti static bag is top open design instead of zip lock design - Make sure to check the size of your electronic components before purchasing as there is still some larger components