Optional Types: Inner, Outer, Inner+Outer. 1 Inner Tire+1 Outer Tire. Colour: Black(As pictures show). 1 Inner Tire. 1 Outer Tire. For e-bike tires, electric wheelchair tires. Material: Rubber. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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