To use these Notion Nooks, simply open the magnet - locked lid and start filling it with your stitch stoppers, tools, and small trinkets. The transparent flaps let you quickly spot what you need. When you're on the go, just slip the case into your project bag. For maintenance, wipe the hard - plastic exterior with a soft, dry cloth. Avoid dropping or subjecting the case to excessive force as it might damage the magnets or the plastic. Keep it away from sharp objects that could scratch the transparent flaps.