Fully certified high strength polypropylene with high-strength tensile base cloth and webbing. Sift-proof seams and heavy duty stay-open corner loops, stitched to surround the bag completely. Easy to stack. Ideal for use in farming and on work sites. Safe working load 1000kg. Safety factor 6:1. Fully certified high strength polypropylene with high-strength tensile base cloth and webbing. Sift-proof seams and heavy duty stay-open corner loops, stitched to surround the bag completely. Easy to stack. Ideal for use in farming and on work sites. Safe working load 1000kg. Safety factor 6:1.