Using the EziGrip Bike Buddy Car Rack Adaptor is easy. First, place it between the seat post and stem of your bike. Make sure it fits securely. Then, you can attach your bike to a traditional prong - style or EziGrip clamp series rack. When using, keep in mind that it can only support adult bikes up to 15kg. Don't overload it. For maintenance, clean the steel body and plastic collars regularly. Wipe off dirt and grime to keep it in good condition. Store it in a dry place when not in use to prevent rusting.