I am really pleased with these. Although soft plastic material, they seem to be strongly made and are large enough to hold all my compost - one bag for "normal" compost, one for leaves and one for pine needles so far. Garden much tidier and I can turn the compost fairly easily so that it makes more quickly. There are no vents or lid but you could cut holes if required. I was able to feed the plastic strip through without too much difficulty (users of a similar product in the USA complained about this.)