Environmentally Friendly Solutions with Eco-ForcePE- PolyethyleneEco-Force Elevator Buckets are manufactured from Polyethylene which is enriched by engineering Plastics.Eco-Force Model Bucket extends periods of replacements, and maintenance and reduces breakage and energy consumption. Non-Easily Wear Material Unbreakable Structure Design That Does Not Cause Spilling Problems High Capacity Maintenance-Free Structure Energy Saving No Bucket Change Required Recommended UsesWheatGrainsFameCoffeeLentilLegumesEco-Force Size ChartHoles are opened to the desired size.Bucket dimensions have a 5% tolerance.