The AFLEX-250 from ANOISON Electronics LLC is a RF Cable with Frequency Range DC to 19.16 GHz, Cut off Frequency 19.16 GHz, Propagation Velocity 0.695, Cable Diameter 0.270 Inches, Attenuation 1.5 to 50 dB/ft. Tags: Flexible, Hand Formable, Semi-rigid. More details for AFLEX-250 can be seen below.