Recommended cable types 14/2 to 10/2 with cable range O.D. Steel or Aluminum .38 to .59 AC/MC/MCIA and Steel or Aluminum 3/8" 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.