Wheelchair caster wheels are close to the ground and after time start to invite hair, dirt, sand, gravel, bark, you name it into the wheel. Replacing your Ki Mobility wheelchair casters is easy at DME Hub. We have a huge collection of wheelchair caster wheels and bearings. Call us at 855-339-5155 or email us at email@example.com if you don't see what you're looking for on our website. All Ki Mobility wheelchairs, parts, accessories and hardware are available at DME Hub.