Material: PP/PE（UV stabilized） Style: square or circular Top: filling spout Bottom: discharge spout or flat closed dimensions: 90x95x120cm or customized Customized colors/styles/dimensions are accepted Minimum Order:100 Pieces Safe working load: 500kg-3000kg or as the custom's requirements Safely factory: 3: 1 to 5:1 or the customers requirements Usage: used for flour, grain, feed, stone, waste, chemical, sand and more