2PACK High Value BNC M-Male-Plug to UHF SO239 SO-239 F-Female-Jack RF coaxial coax Adapter Pure brass with Great connectivity.(Not Alloy) Compatible with Agilent,R&S,Tektronix Receiver. Connectors are Milled Brass with Nickel Plating for Durability 50 ohm Impedance. Package inclue item:2pcs 5-12 Businese day delivery to USA Address if Fullfilled by seller.