Using these Fisher & Paykel crisper bin slide runners is easy. First, locate the old runners in your fridge's crisper bin. Remove them carefully. Then, take the new runners from the pack of two and place them in the same position as the old ones. Make sure they fit snugly. As for maintenance, keep the runners clean by wiping them with a soft, damp cloth every few weeks. This will prevent dirt and debris from building up and affecting their smooth movement. When handling the runners, be gentle to avoid any damage. If you notice any issues with the runners' movement or if they seem loose, check the installation to ensure they are properly in place.