Sample Free Best Price Pneumatic Rubber Wheel(4.00-8)Model: Rubber wheel 4.00-8Size: 16"Ply rating: 4prBearing size: 20mmRim material: IronMin order: 400 PCSLarge scale and strict quality control, small benifit and good sale.Our products have passed the the copper corrosion resistant experient through Japan and the EU environmentalProtection examination approve. We have got the 3C certificate and ISO9002, SONCAP.