To use this sweater kit, first, head to the designer's Ravelry page to get the pattern. Then, gather the necessary tools like US size 7 (4.5 mm) circular needles and a set of DPNs. We also suggest having stitch holders, stitch markers, and a tapestry needle ready. When you start knitting, follow the pattern carefully and use the Lopi Lettlopi yarn in the specified colors and amounts. As for maintenance, when the sweater is done, hand - wash it in cold water to keep its shape and color. Lay it flat to dry to avoid stretching. And store it in a cool, dry place to prevent any damage. Just be careful not to lose your stitch markers and keep your needles in a safe place when not in use.