High impact-resistant thermoplastic construction and premium finish withstands continuous, everyday use. External screw pressure plate back and side wired. Accepts #12 and #14 AWG (American Wire Gauge), push wire #14 AWG. Narrow back body leaves more room for wires in the box, extra-long through-body strap eliminates floating installations and imperfect applications. Easy access green hex head ground screw, tri-drive ground, terminal, and mounting screws. On-off switches conform to NEC (National Electrical Code) 430-104 requirements for kitchen disposal units. 1.43" W x 4.19" H x 1.27" D.