The Knit & Weave Look Kit comes with two sizes of pegs to accommodate a variety of yarns. The gauge of your knit or woven piece will be determined by which peg size you choose, whether you use the pegs in every hole or every other hole, and the size of your yarn. You can use #4 Medium, #5 Bulky, and #6 Super Bulky yarns to achieve a variety of gauges. #3 - Lightweight or finer yarns can be used single-stranded for lacy, open gauges or double- or triple-stranded for tighter gauges.