Using this ULAC chain combo lock is a breeze. First, wrap the chain around a secure object like a bike rack or the top tube of your bike. Then, set your desired combination on the lock mechanism. To store it, use the included ULAC velcro to neatly bundle the chain. When transporting, you can either wrap it around the top tube or the seat post of your bike. As for maintenance, keep the lock dry to prevent rust. If the combination seems hard to turn, you can use a little graphite powder to lubricate it. Also, avoid exposing the chain to sharp objects that could damage the nylon sleeve. And remember, don't share your combination with strangers to keep your bike safe.