Daisy chain cord & Quick-lock bolt

Why dosen't this come with the 650W setup??

The Grow Light 600w comes with 3 daisy chain cords and 8 quick-lock bolt

I dont understand pack options on daisy chain cord.. is it multiple sizes? Or do you get multiple cords and locks the more expensive the pack?

You would get greater numbers of cords and locks the more expensive the pack.