Patent No of this product. 202130616362.4 Why add this piece of iron The steel plate is attached to the bottom of the rear fender through 3 strong rivets, which makes it have greater load-bearing capacity and stronger. The rear fender is not only fixed to the frame with two holes, we also added two holes to install it on the seat, which makes it more integrated. The difference between the first and second generation and the original As shown in the picture: The second-generation rear fender needs to be installed between the seat cushion and the frame. About the material Under the heating of 356 degrees Fahrenheit, 100% brand-new PP particles are melted and squeezed into the ferroalloy mold under the pressure of 50 Bar.The plastic atoms in the rear fender are tightly locked together without any air bubbles.