Requires 9 balls in various colours (2+2+1+1+1+1+1) for sizes S and M
Requires 10 balls in various colours (2+2+1+1+2+1+1) for sizes L and XL
Also needs one 3.25mm(US3) circular needle, 40 cm (16 inch) long

EXTRAS : beads 4mm or 1/8th inch in two colours for S M L XL. Recommend for colour scheme:
Purple approx 390/440/490/540 beads
Pink approx 180/195/210/235 beads