Flat-Free Solid Rubber Wheel, 250 lb Load Rating, Ribbed Tread, 6 1/8 in Wheel Dia., 3 1/2 in Wheel Width, For Axle Size 3/4 in, 6x2, Standard Tire Rim Type, Center Mount Hub Position, 2 1/4 in Hub Length, Steel Hub Material, No Non-Marking