Die-cast with high-temperature impact-resistant thermoplastic insulator, supporting electrical contacts. Accepts Lytespan luminaires for individual applications. Steel low-profile canopy, attached with two painted slotted cap screws (provided). Crossbar: 0.074 steel, permanently fixed to track. Provides secure mounting of monopoint to electrical junction box. Supply Leads: 16ga. White and Black, Green. insulated stranded wire. Locking Slot: Accepts locking tab of some Lytespan Track luminaires.