The speaker cable have the following specification:

10 AWG 5.26MM2    OD:5.5*11.0MM

12 AWG 3.31MM2    OD:4.5*9.0MM

14 AWG 2.08MM2    OD: 3.5*7.0MM

16 AWG 1.31MM2    OD: 3.0*6.0MM

18 AWG 0.823MM2   OD: 2.5*5.0MM

20 AWG 0.519MM2   OD: 2.2*4.4MM

22 AWG 0.324MM2   OD: 2.0*4.0MM

24 AWG 0.205MM2   OD: 1.8*3.6MM

          0.5MM2          OD:2.4*4.8MM

          0.75MM2        OD:2.5*5.0MM

          1.0MM2          OD :2.8*5.6MM

          1.5MM2          OD:3.2*6.4MM

          2.0MM2          OD:3.8*7.6MM

          2.5MM2          OD:4.2*8.4MM

          4.0MM2          OD:5.0*10.0MM

          6.0MM2          OD;5.5*11.0MM