The strong folding seed box lid, rubber sealed, covers the large seed box and protects its contents from ingress of rain water and dust. With its tubular handle and a gas filled strut the lid is comfortably handled. The enlarged seed boxes and extensions allow for capacities varying from 450 litres to 1000 litres on a 3 m working width. Large access steps and strong handrails offer complete safety when walking onto the loading board. Inserts available as option prevent the seed from running downhill in hilly terrain.