This design is reserved for customers to insert cards, which can be replaced with different small panels at any time. The switch here is going to be embossing, and there's a little dot in the middle and here, it's going to be embossing. There is a pot under each button, according to the gram weight of different sizes of pot pieces, membrane switch surface has different colors of materials, materials are made according to customer requirements, generally we have Autotype, imported and domestic.