Its use 20 AWG high purity OCC Solid core coaxial conductor. Has triple shielded to reduce noise. Combined with special design pure copper central pin RCA plug, and terminated with silver unique solder that will make FSS-20i can deliver the best sound quality posible.

FSS-20i.10 : 1 meter length (pair)
FSS-20i.30 : 3 meter length (pair)
FSS-20i.50 : 5 meter length (pair)