1.rubber wheel 2. Solid, pneumatic, PU 3. good quality and extremely competitive price (1) Name: rubber wheel(2) Color: Black ,red, ... rub resistance, natural rubber tire and steel rim make sturdy wheel.(6) Material of rim: Steel or plastic.(7) ... and ensure trye quality ,cut down your purchase risk .(10 ) Sample: we can supply free of charge sample to ... 50-8, 3.00-4, 3.50-4, 4.10/3.50-4, 3.00-8, 3.25/3. ...