Woodland Scenics ST1436 Hot Wire Foam Cutter Replacement Wire Railway Landscaping Scenics

I cannot get the wire to stay wrapped around the foam cutter prongs. I coil them, wind them, and they always seem to unravel after a few minutes. ?

What is the awg of this wire?

Is this made of nichrome? Thanks in advance

I cannot get the wire to stay wrapped around the foam cutter prongs. I coil them, wind them, and they always seem to unravel after a few minutes. ?