5 pieces of a combination of RJ11 telephone jack and F-type coaxial cable connection with 10 pieces of mounting screws are included. Each wall plate measures about 4.5 x 2.75 in. These wall plates are corrosion resistant, not easy to deform or break, and are able to withstand high temperatures. Standard F type connector for connecting devices such as a modem, router, or CATV box for video and internet services using a coaxial cable. Phone jack works with all 6P4C telephone cables with RJ11 connectors.