Generic ESD Anti Static Shielding Bags Open Top 2" x 4" - 500pcs Item Name: Anti Static Shielding Bag (Flat Open Top) Size: Usable size. Width x Length (Inch) Thickness: 0.075mm, 3 Mil approx. (each side). Total 0.15mm, 6 Mil approx. Material - APET / CPP (Aluminized PET / CPP). Color: Silver-grey & Semi-transparent. Friendly Reminder: Before making order, please check the size and quantity you want. We have different sizes and quantities for you to choose.