High quality and built to last: engineered for high wear resistance and excellent durability to withstand repeated use and extend component life. Easy to install: straightforward fitment that reduces installation time and maintenance effort. Clear size requirement: designed for front forks with an inner diameter of 19–22 mm. Please confirm this measurement before purchasing. Compatibility: specifically suitable for high-end children's cars, climbing cars, and some carbon fiber front forks with thick front forks. Function and performance: provides reliable protection and long-term wear resistance for compatible front forks, helping maintain stable operation over time. Typical use scenarios: Replacement part for a high-end children's car to restore secure fork fit and durability after wear. Upgrade or repair on a climbing car where high wear resistance is required for frequent off-road use. Protective insert for thicker carbon fiber front forks (where compatible) to reduce wear on mating surfaces. Notes: Verify the inner diameter of your front fork is between 19 and 22 mm before ordering to ensure proper fit. Designed for durability and straightforward installation; consult your vehicle’s specifications or a technician if unsure about compatibility.