I have now ordered 4 different sets of fenders (3 Tesla, broke a fender on curb once) and these were the cheapest AND the best. I took the box with me when I went to pick up the car and it took me 3 minutes to assemble the front parts. It's 350 miles so I really wanted protection and was glad to see the tools and extra pins. Too early to know about it. Durability but I gave you five stars because I am very happy with the product. Carry on in the same spirit.