Coupling Raceway Type Steel Number of Channels 4 Width (In.) 1-3/8 Length (In.) 2-1/2 Length (Ft.) 2 1/2 Color Black Material of Construction Steel Mounting Screw Function Join Lengths Of Raceway Features Tamper Proof Standards UL/ADA/cETLus For Use With Mfr No OFRBC-8 1 Pair