Standard RG58 coax cable, ideal budget coax for HF or for shorter runs at 4m and 2m bands.
 
Also pretty handy for making common mode chokes for upto 400w power.
 
Key Features/Specifications:
    Size: 5mm standard
    Impedance: 50 Ohms
    Core: Stranded
    Braid: 69% 80 X 0.12
    Loss: per 10M @ 100MHz :2.0dBd
    Colour: black