Mini skein yarn in the United States refers to smaller quantities of yarn wound into compact skeins, typically ranging from 10 to 30 grams. These skeins are commonly used for colorwork, striping, contrast details, and sample swatches in knitting and crochet projects. Mini skein yarn is available in various fiber types, including wool, cotton, acrylic, and blends, and is produced in multiple weights to match standard gauge requirements. Crafters often select mini skein yarn to test textures or incorporate diverse color combinations without purchasing full-sized skeins, making it a practical option for detailed and decorative work.