Safety Factor: The bags are designed for safety factor ranging from 4:1 to 6:1. Filling and Discharge: Filling or top: Open top, Spout, Duffel top (Skirt), Conical Top Discharge or bottom: Spout, Duffel Discharge (Skirt),Closed, Conical Construction: Square,U-Panel, Circular, O-Panel Lifting Arrangement: 1) Cross Corner Loops. 2) Corner loops. 3) Single loops. Fabric: Woven PP is commonly used. Capacity: from 300kg to3000kg. Size commonly varies from W x L x H = 85 x 85 x 50cm to 106 x 106 x 230cm.