From the manufacturer:
The Colors Of Friendship: Bobbin Box. Create beautiful bracelets and necklaces for yourself or your very best friends! This kit includes one 10-1/2x7x1-3/4 inch plastic case with snap closure and twenty-four compartments, twenty-five plastic bobbins wrapped with 4 yards of 100% cotton Prism floss, twenty-five empty plastic bobbins, and seventy-five plastic beads.