Using these TBS M3 Honey Stick Ends is easy. Simply attach them to the radio gimbals with M3 threaded shafts. They're made to fit securely, so just screw them on tightly. When using, enjoy the comfortable ball - shaped design that keeps your fingers in place. As for maintenance, since they're made of CNC aluminum, they're quite durable. But it's still a good idea to keep them clean. You can use a soft, dry cloth to wipe them down regularly. Avoid using harsh chemicals or abrasive materials as they might damage the finish. Also, store them in a dry place when not in use to prevent any corrosion. If you notice any looseness, just tighten the ends a bit to ensure they stay in place.