Label states fiber content 23% kid mohair, 10% nylon, with beads and sequins. Same fiber content as Lucci Princess except Princess also has 67% rayon and no beads or sequins. Label states size 11 needle = 4 stitches = 1 inch.
It doesn’t seem anywhere near that heavy to me. Maybe the beads and sequins are why it would use a size 11 needle. Pretty yarn, good to combine with another yarn.