Mueller's AW80033 is a 6 AWG, extra flexible stranded copper wire which is jacketed at 25 to 30 mil with polyurethane, making this cable useful for outdoor use under harsh conditions.
The WI-M-10 is "Coolflex 45" wire that is 10 AWG, 1064 strand 56/08x19C, tinned copper wire with a highly flexible 0.197" (5mm) diameter silicone jacket.
The WI-N-18 is an 18 AWG, tinned copper wire with a 0.144" (3.66mm) diameter PVC jacket. 65 strands, 36AWG, 0.005" (0.127mm) diameter per strand. UL listed style 1855.