We strive to offer innovative new products to meet the need of the rapidly changing world we live in. Our goal is to provide products manufactured with the best materials and consistent, processes. 4 rows 21 ft low rise bleachers. Planks are powder coated Color will not fade in the outdoor elements. Specially designed allows 4 rows of seating without the need for 12 gauge chain fences. The frames are 100 Angle welded aluminum. First Row has a seat height of 12. Top row has a seat height of 30 cm. Planks are 10 wspecifications. color blue. Size 21 ft. Weight: 3842 lbs