... Model : Pneumatic Wheel 2 Rim : steel & plastic 3 Size : 16"x4.00-8 4.00-8 rubber wheel : Strengh: 1 High rubber content2 ... pneumatic wheel, solid wheel etc.2.Size : PU foam tyre(6x2,2.50-4,3.00-4,3.50-6,3.50 ... ,13"x3.25-8,13"x3.00-8,13"x5.00-6,4.80/4.00-8,etc.)pneumatic wheel(6"x2 ... -6,13"x3.00/3.50-8,13"x3.00-8,4.00-8,13"x4.00-6,13"x5.00-6,12"3 ... -5,3.50-7,14"x3.50-8,16"x4.00-8,18"x6.50-8,etc)3.Rim: steel & ...