... 50-8,pu foam wheel,flat free.light and no need tube replace. lawn tyre pattern. popular flat free tire,also called pu wheel ... , flat free wheel . American Technology , High quality ... wheel weight : 4.6kgs tyre color can be red , yellow , black ,blue other sizes including : 200x50,265x85, 3.50-4,3.50 ... -6, 4.00-6, 3.50-8,300-8,325-8 ,250-4,500-6, 6.50-8 ...