If your Xiaomi M365 scooter's folding mechanism has seen better days, this replacement buckle is exactly what you need! It's that plastic circle thing that keeps your stem securely locked when you're riding - you know, the part that gets worn out after lots of folding and unfolding. This isn't some cheap knockoff either; it's made from durable plastic that's designed to be wear-resistant and skid-proof, so it should last way longer than the original. Installation is seriously simple - no special tools needed, and you won't damage your scooter in the process. It fits perfectly on Xiaomi Mijia M365 models and keeps everything locked firmly in place when you're cruising around. The black color matches the original hardware, and at about 7x5x5cm, it's the exact same size as what came with your scooter. Think of it as a quick fix that saves you from having to replace the whole stem assembly. For less than the cost of taking your scooter to a repair shop, you can have your M365 folding and locking like it's fresh out of the box again. Just pop this guard ring on and get back to riding!