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 screw length is 150mm x 24mm / 5.9 x 0.94. The axle is 75 mm / 2.95. (Please check the detailed dimensions in the third photo before purchasing!!) Package includes 2 front gray replacement wheels, 2x axles, easy and convenient to install without complicated steps, saving your efforts and your time. Made of high quality and eco-friendly rubber material, this set of solid replacement wheels is non-slip and dustproof with strong wear resistance and durability. load capacity. Wide application on disabled vehicles, health care 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, economical, practical and long-term to use Choose this 6 inch rubber wheel replacement set for wheelchairs, rollators, walkers and replace them easily and conveniently by yourself! b> Specification: Material: Solid Rubber Color: Gray Overall wheel dimension (diameter x width): 150 mm x 24 mm / 5.9 x 0.94 Internal diameter of central bearing: 8 mm / 0.3 Distance between bearings on both sides: 40 mm / 1.57 Axis screw length: 75 mm / 2.95 < p>Total weight: 700 g Package includes: 2 x wheels 6 inch black front spare&lt; br&gt;2 x axle screws