Using these Alton Micro Line Locks is a breeze. First, select the thin guylines you want to secure. Make sure the guylines are within the 1 - 2mm size range. Then, thread the line through the lock. You can easily adjust the line to half of its original length with just a few simple pulls. The self - tensioning feature will keep the line firmly in place. When it comes to maintenance, there's not much to do. Since they're made of POM, they're durable. Just keep them clean and dry. If you notice any signs of wear or damage, don't worry as they come with a lifetime warranty. Also, be careful not to use them with cords that are too thick, as it might affect their performance.