Recommended cable types 14/2 to 10/2 .38-.59 Steel or Aluminum AC/MC/MCIA and 3/8 Steel or Aluminum FMC. Simply snap cables into connector and snap assembly into electrical box. No tools required! Integral internal spring steel locking tabs fasten cable or conduit. External spring steel locking tabs secures connector to electrical box. Suitable for maintaining grounding continuity when installed in accordance with the NEC.