1. Aluminum alloy material, strong and durable 2. Easy to install, no rust 3. Applicable models: for Xiaomi M365 / PRO 4. Material: aluminum alloy 5. Inner diameter: about 29.3mm 6. Size: about 11.8 x 7.6cm 7. Weight: about 470g 8. Description: only the folding device, without other items in the picture
