1, mass. The schoolbags of Oxford University are mainly made of Oxford cloth, while other schoolbags are made of leather. In contrast, Oxford University's schoolbags are more wear-resistant, waterproof and of better quality.

2. Use of time. Oxford University schoolbags are used for 7 years, and other schoolbags are used for 5 years. In contrast, Oxford University's schoolbags are longer and more durable.