This is for a 500g factory sealed pack of this quality Italian yarn,"Pertinio" by SMC Select. A pack is 10 x 50g balls. It is a DK weight yarn with a thread of lurex running through it and it is constructed by wrapping rayon and a thread of lurex around a cotton core. You will receive a 500g pack not just a single ball as the main photo suggests!,82% Cotton/14% Viscose /4% Polyester,50g = 100m,Tension Details: 20sts x 28rows = 10cm,Needle size: 4mm,Hand Wash Only