Sitting grain is unfortunately an attractive treat for pests. Our granary chambers automatically move all the grains a little every time you release grain, so that no pests can lodge your supplies. Remove just the amount of grain you need via the stainless steel gate - the integrated cup measures up to 2 cups of grain. The clear convex viewing panes show how much grain you have available. Why not hang several cylinders side by side, to accommodate your growing supplies with ease?