Using this ChiaoGoo needle case is super easy. Just unzip the case, and you'll see the labeled pockets. Put your needles in the appropriate pockets based on the labels, so you can easily find the ones you need later. When you're done knitting, simply zip up the case to keep your needles safe. As for maintenance, you can spot - clean the soft cotton fabric with a damp cloth if it gets dirty. Avoid soaking the case as it may damage the fabric or the zippers. Keep it in a dry place to prevent mold or mildew. Don't overstuff the pockets, as it might cause the zippers to break or the case to lose its shape.