Using these rear wheels is easy. First, make sure your vacuum cleaner is turned off and unplugged. Then, locate the old wheels at the rear of the floor head and carefully remove them. Take one of the new wheels from the pack and fit it into the wheel slot. Make sure it's securely in place. Repeat the process for the second wheel. When using your vacuum cleaner, try to avoid running over large or sharp objects that could damage the wheels. For maintenance, periodically check the wheels for any signs of wear or debris. If there's dirt stuck on the wheels, you can use a soft brush to gently clean them. With proper use and care, these wheels will serve you well for a long time.