Marin brand table tennis racket has Marin's head on it. You can buy real goods at the counter store, and there will be no fakes.

Generally, it can be identified like this

Put a table tennis ball on the table, press the racket on the ball, and then lift it quickly. At this time, if the ball feels lifted, it means that the rubber is good. This kind of rubber has high friction and is easy to rotate.