Materials
9 (11, 13, 15) x 25 gram balls for single colour version or,
5 (6, 7, 8) x 25 grams in main shade and,
2 (3, 3, 4) x 25 grams in contrast 1 and,
3 (3, 4, 4) in contrast 2.
6 (6, 7, 7) buttons.