Using these stainless steel hose clips is easy. Just place the clip around the hose where it needs to be attached and secure it tightly. When installing, make sure the clip is centered on the hose for a proper fit. As for maintenance, since they're made of marine - grade stainless steel, they're quite durable. But it's a good idea to check them periodically for any signs of wear or looseness. In corrosive environments, a simple wipe - down with a clean cloth can help keep them in good shape. Remember, these clips are designed for AS3 Performance and OEM hoses, so make sure you're using them with compatible hoses. And if you have any issues within the 12 - month warranty period, don't hesitate to contact the manufacturer.