Using these hose clips is easy. Just place the clip around the hose where it needs to be secured and tighten it properly. When installing, make sure the clip is centered on the hose to ensure a good seal. As for maintenance, since they're made of 18/8 marine - grade stainless steel, they're resistant to corrosion. But it's still a good idea to check them regularly, especially if they're used in a harsh environment. If you notice any signs of damage or if the clip doesn't seem to be holding the hose tightly anymore, it's time to replace it. And remember, these clips are designed to fit specific hoses, so always make sure you're using them with AS3 Performance or OEM hoses as recommended.