Features: Upgrade your mountain bike with this Adjustable Inner Diameter Mudguard Mounting Rings, features simple installation and compatibility with 25 32mm tubes for seamlessly adaptation to diverse bike racks. Crafted from high strength engineering plastic, this rustproof bicycles accessory boasts 50% enhanced impacts resistance while remaining light weight for durability performances. Ideal for cycling enthusiasts and commuters seeking customizable bike accessories, it simplifies mudguard installations for riders of all skill levels without technical expertise. Perfect for commuting, or adventure cycling, this versatile mounting rings ensures stable mudguard attachment even on road or wet conditions. Engineered to securely hold up to 10kg loads, its precisions designed clamp eliminates wobbling issues during intense rides while offering flexible customization option for modern cyclists. Specifications: Dimension:16-52mm/6.29-20.47in 15cm/5.9in Component:plastomer Package Includes: 1pair Adjustable hose clamps rings note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.