Using the Hiplok Homie is easy. First, find a secure place to lock your bikes, like a wall or a bike rack. Wrap the 150cm chain around the bikes and the anchor point, then use the coded keys to lock the 12mm hardened steel shackle. When you're done, you can use the integrated wall hook to hang the lock on the wall. This keeps it off the floor and organized. For the sleeve, if it gets dirty, simply remove it as it's washable, and you can put it back on after it dries. Remember, although this lock is very secure, always lock your bikes in well - lit and populated areas. Don't expose the lock to extreme temperatures for long periods as it might affect its performance. Regularly check the chain and shackle for any signs of wear and tear, and if you notice any issues, contact the manufacturer.