Pack of 4.This 4 pack of Sankey Grostart Midi is perfect for growing fruit and vegetables from seeds or plant cuttings at low temperatures and the enclosed environment will protect your plants from the elements allowing for your plants to thrive and these propagators are the ideal size for windowsills.Propagators are similar to mini greenhouses, an incubator providing the optimal conditions for plant germination and will allow for all year round perfect controlled conditions whether it's fruit ,vegetables or herbs from seeds or even plant cuttings and they can give your seeds or cuttings a head start on the summer season by creating the ideal climate for growth whilst indoor during the winter period.This seed starter tray is ideal for those looking for a fun and new activity to bring the whole family together.Dimensions: Base tray: 38cm width, 25cm length, 6cm depthClear lid: 38cm width, 25cm length, 14cm height