Using these TIG rod storage tubes is easy. Just open the tube, place your filler metals inside, and close it up. The neoprene seal will keep the rods safe from air and water. When using the key tag, write down what's inside the tube so you can quickly find the right filler metal. For maintenance, keep the tubes in a dry place. Avoid dropping or hitting them hard as they're made of high - impact polyethylene but can still be damaged. If the tubes get dirty, you can wipe them clean with a dry cloth. When storing, you can stack them up to save space. Always check the key tags before using the rods to make sure you're using the right ones.