The CCI Replacement contact bars are intended for use on all manufacturer’s wing pulleys and are field installable as well as shop installable. This product features vulcanized lagging or non-lagging on flatbars which have ¼" x 1" clips on the bottom side designed to slide over the vertical wing flights on wing pulleys that have worn contact bars. It is imperative that the specific wing flight thickness be specified at the time of order so that our fabrication team can space the clips properly to slip over the existing wings.