Carlon B112HB Handy Outlet Box, 1 Gang, 4-Inch Length by 2-1/8-Inch Width by 1-7/8-Inch Depth Material: Non-Metallic Volume (Cubic Inches): 12 Knockouts: (6) - 1/2 Inch Numbers of Gangs: 1 Cable Clamps: 2 Thermoplastic construction that will not rust or conduct electricity Built in cable clamps to hold wire firmly in place Six knockouts for easier wiring Flexible, can be used for many applications 12 cubic inch capacity