... - now man can do the same job with less effort! Air Free - Worker will not have to worry about under or ... widely used in lawn mowers, toy cars, trolleys, hand truck, air compressor, generator sets and other vehicles. The main size of semi ... "x1.5", 6"x2", 6"x1.75", 7"x1.5", 7"x1.75", 7"x2.5", 7.4x1.8"8"x2", 8"x1.75 ...