The overall wheel dimension (diameter x width) is 150mm x 24mm / 5.9" x 0.94", the inner diameter of the center bearing is 8mm / 0.3" and the length of axle screws is 75 mm / 2.95". (PLEASE check the detailed dimensions in the third photo before purchasing!!) Package includes 2 x black front replacement wheels, 2 x axles, easy and convenient to install without complicated steps, allowing you to save your efforts and time. /p Made of high quality and eco-friendly rubber material, this solid replacement wheel set is non-slip and dustproof with strong wear resistance and load capacity. Wide application on disabled vehicles, healthcare vehicles, etc., compatible with most wheelchairs, walkers, walkers or other replacement accessories with 6" wheels. < p>This front wheel replacement set will provide quiet, smooth and light rolling on all surfaces, suitable for indoor and outdoor use, labor-saving, practical and long-term use. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.