Generally PU wheel chair is relatively good on the market , its characteristic is wear-resistant, this kind of wheel is generally a double colored, so it will not damage the floor or carpet. if use good wheels chair, smooth. Do not let the carpet to adapt to the chair, but the chair to adapt to the carpet, sliding noise is small, it will cost as much as 50% more than the average cost of a single color wheel, it will not restrict the use of carpet material
