What is this?Silicone RCA port protection cover is used for protecting RCA ports of various electronic devices. RCA dust cover can prevent dust and moisture from entering the port and protect the port from damage. The RCA interface protection cover can also be used outdoors, such as camping, hiking, travel, etc.What will I get?Silicone RCA port protection cover, is in size of : 10mm x 8mm x 8mm/0.4 inch x 0.31 inch x 0.