1 2 3 4 5 six seven 8 nine 10 11 twelve 13 14 15 16 17 18 19 twenty 21 22 23 24 25 26 27 28 twenty-nine thirty 31 32 thirty-three thirty-four thirty-five 36 37 38 39 40

adult average size (44 * 22cm) children's average size (34 * 15cm)