16mm2 and 50mm2

Who has spare, or knows where one can find the soft, very pliable, silicone I think, 16mm2 and 50mm2 battery cables, for between a 250 MPPT (the 16mm2) and 5kva inverter (50mm2)?

I have 75mm2 cables currently from the inverter, bugger they are tough.
Have meters of 50mm … want silicone.

WANT to make a few changes … before it becomes a NEED.

Request “welding” cable.

It’s better, but not as soft as the BMS cables.