Cheap And Discounts 8x 13cm or 3.15 x 5.12inch Anti Static Shielding Bags Zipper lock Top waterproof self seal ESD Anti-Static pack bag 50pcs/bag Wholesale. Buy Directly From Merchant ShenZhen ChengFeng CleanRooms Tech CO.,LTD Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.