1.flat free wheel 2.Size: 13 inches 3.Hub length: 110mm, 150mm, and 200mm 4.With axle of 160mm, 210mm, and 260mm Solid rubber wheel for Italian type wheelbarrowSize: 13 inchesMetal rim, plastic bushingHub length: 110mm, 150mm, and 200mmWith axle of 160mm, 210mm, and 260mm solid rubber wheel for wheelbarrow