Using these hose clips is easy. First, find the right hose on your 2019 - 2022 Husqvarna FC 450, FX 450, or FS 450. Place the clip around the hose and tighten it securely. Make sure it's firmly in place to prevent any leaks. As for maintenance, since they're made of high - quality stainless steel, they're pretty durable. But it's a good idea to check them regularly, especially if you ride in harsh or corrosive environments. If you notice any signs of wear or looseness, it might be time to replace them. Remember, these clips are designed for AS3 Performance and OEM hoses, so use them only with compatible hoses for the best results. And keep in mind, they come with a 12 - month warranty, so if you have any issues, you're covered.