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