The SCS Dri-Shield 3000 silver moisture barrier bag is sold 100 per pack and is another quality product from SCS. The moisture barrier bag is constructive of nylon/foil/polyethylene and protective properties such as static dissipative. The overall length and width are 20 in x 10 in. Thickness is a key component to use of this product and measures in at 6 mil. This moisture barrier bag meets the following standards: ANSI/ESD S541, EIA 625, IPC/JEDEC J STD 033, ANSI/ESD S20.20.