Using this hub adapter is easy. First, find the parts with 0.77' and 1.5' hub patterns that you want to connect. Then, simply align the adapter with the holes on these parts and connect them. When using it, make sure to match the tapped and untapped holes correctly. For maintenance, keep the adapter clean and dry. If it gets dirty, you can use a soft cloth to wipe it. Avoid using sharp objects to touch the holes to prevent damage. Store it in a cool and dry place when not in use.