4000 strings.
400 bundles of 10.
Format is SOLO.
SOLO is 100% polyester made from a combination of 3 different thread weights.
Design is HighLites.
Colours are Neon tones of Yellow, Green, Orange and Pink.
That is a lot of string. My brain hurts just thinking about how long it takes me to spin 4 strings, never mind 4,000. It is truly an embarrassment of string riches now, really good times to be a yoyo player.