Material: Made from plastic. Clear design: The transparent lid allows you to keep a watchful eye on your seeds as they grow! : Great for placing in a greenhouse or on your windowsill! Propagator: Get a pack of propagator nursery pots. Nursery trays: Give your seeds and mini plugs a head start with these robust propagator trays which contain 40 compartments each. Options: Choose from three, six or nine trays. | Seed Growing Propagator Trays | Wowcher