Chosen by Marcy and the ArtBarn team, each combo is made up of a total of 3 yards of knit fabrics. If there are 3 fabrics, one yard each, if there are 2 fabrics, 1 1/2 yards each. Fiber content and widths vary, see the individual descriptions for more details. Not a kit, no instructions, how you use the combo is up to you! All are limited editions, we love putting these together and they sell out quickly, so check back often.