Up for sale is high quality (made in Taiwan)
Track Hanger Set #FRS-115
This is generic not genuine.
For Feedrail, Electro-Rail, Busway
Used in place of FRS-105 where head room is limited and mounting bolts are not available. Takes 3/8" diameter messenger cable. They can be attached to busway (track) at any point. Minimum of two hangers required for each 10 foot busway section.