The yarn is undyed 100% laceweight merino wool. They have a pair of tiny silver plated knitting needles in them. This is a very discreet design for when you need to be subtle about your yarn obsession...!
Needles 14mm (1/2") length
Yarn ball 7mm (1/4") diameter
The earrings shown modeled are my own personal pair. All earrings for sale have brand new, never worn silver plated posts.