Inline Turnbuckle Pair (ceiling)Tensions Cable from center of span. Recommended option for spans over 60'. Also used to tension continuous loop configurations. Turnbuckle is .5" x 3.6". Type Number Finish Conductive CA-309-ALCA-309-PN AluminumPolished Nickel Isolating CA-310-ALCA-310-PN AluminumPolished Nickel