Womens Large Silk Feeling Scarf Long Satin Scarves Lightweight Shawls Art Collection

What is it actually made of? the description says "high quality satin charmeuse... super soft and cozy fashion silk" but i doubt it is actually silk.

Does it wrinkle when washed?

Hi! Could anyone please tell me if this fabric is slippery. Does it slide around or does it stay in place? Thank you.

What are dimensions of scarf itself?