Any standard gauge machine, including Passaps. Sizes are finished bust measurements of 36, 38, 40, 42, 44, 46, 48, 50, 52. The yarn is Tamm Bebe at a gauge of 6.5 stitches/9 rows/“ or 26 sts/36 rows/10cm/4”. This will likely be achieved at a stitch size of 8-9 on most machines and 7 on Passaps. One cone of Tamm Bebe makes up to a size 44. Larger sizes require more but as we are knitting in stripes, one cone of each is more than enough.