This plastic poultry feeder from Eton holds 3kg of pellets or crumb, which should be enough for 3 - 4 chickens for a whole day.
It's a great value feeder with a twistlock base. It's easy to take apart and clean, and the useful grid design helps to reduce feed being scattered by your hens.
The carry handle also acts as an anti-perch device, so it is less likely to be knocked over by playful chickens. The clever lid also keeps the feed in the main storage area dry when it rains.