What is this? Faraday Foam Gaskets are widely used to block RF signals from shielded boxes and remain conductive with an adhesive backing on the bottom. Widely for Seal RF Enclosures/RF Shield Box, Covered in High-Shielding Fabric with Adhesive Backing. As an EMI shielding material, it is widely used in electronic cabinets, indoor cabinets, industrial equipment, laptop computers, mobile communication equipment, etc. What will I get? Color: Grey Length: 10mm/0.39 inch Width: 10mm/0.39 inch Thickness: 3mm/0.12 inch, 5mm/0.2 inch, 8mm/0.31 inch, 10mm/0.39 inch Material: Conductive Sponge In the package of: 50 Set x Conductive Foam, 4 thickness for each set Are there any advantages of the product? Conductive foam sheets have good conductive and shielding properties and are widely used. The adhesive backing allows it to stick more firmly to doors, connectors, housings, etc. The combination of conductive cloth and conductive cotton gives it better conductive efficiency. How to use it? Tear off the plastic film backing, you can paste the conductive foam gasket to the place where you need to use, press hard for a while until the gasket has been firmly affixed to the other. What should I notice? Product dimensions are hand-measured, there may be slight differences between some products. Thanks for your understanding.