An excellent tray which has been designed especially to water your plants while you are away it is also useful in the greenhouse for watering cuttings and seedlings as plants can take exactly the water they need works by capillary action using an inner tray water reservoir and matting to draw up the water measurements 76cm long x 17cm width x 3 5cm high supplied in a plain cardboard box by not having the coloured packaging we are able to pass the cost saving directly to you