While windowsills can often provide ideal light conditions for successful propagation, they can also be cool and draughty. This compact electric propagator is supplied with 3 high dome propagators – each 23cm (9″) Long 17cm (6.5″) Wide.The propagator units are ideal for growing seeds in volume and particularly suited to larger cuttings. The heated base contains a 13 Watt carbon fibre element for even heat distribution. This unit is not thermostatically controlled and is designed to increase the ambient compost temperature by around 8° Centigrade.Dimensions: 76cm (30″) Long 18.5cm (7.25″) Wide 20.5cm (8″) High)