Using these hose clips is easy. Just place them around the radiator hose where needed. Make sure they're tightened properly, but don't over - tighten as it might damage the hose. When it comes to maintenance, since they're made of high - quality stainless steel, they're quite durable. You can clean them with a mild soap and water solution to keep them looking good. Avoid using abrasive cleaners as they can scratch the polished finish. Also, check the clips regularly for any signs of wear or loosening. If you notice any issues within the 12 - month warranty period, contact the manufacturer for assistance.