Alright, so if you own a Ninebot ES1, ES2, ES3, or ES4 electric scooter and your rear fender has seen better days, this GYL replacement is exactly what you need. Seriously, that rear fender takes a beating - from kicks when you're folding/unfolding the scooter to just general wear and tear. This one is made from a combo of alloy and plastic, so it's sturdy but still has some flex to it (which is good because rigid fenders tend to crack). The gray color matches the original equipment perfectly. Installation is pretty straightforward - you just line up the mounting holes and secure the screws. The aluminum-reinforced holes add extra strength where it counts most. At about 30cm long and weighing 285g, it's the same specs as the original. But here's the real benefit - no more muddy water splashing up on your clothes when you ride after it rains! It's also compatible with Hiboy S2 scooters, which is handy if you have multiple scooters in the family. The package comes with just the fender itself, no tools included, but if you've ever changed a fender before, you know what you're doing. GYL includes customer service support too if you run into any installation issues. Definitely a smart upgrade if your original fender is cracked or missing pieces.