This Heated Medium Propagator Is Made Out Of A Robust Plastic, With A Shatter Resistant Lid, Making It Resistant To Bumps, Knocks And Drops.a Heated Propagator Is Perfect For Growing Your Own Plants Early From Seeds Or Cuttings. The 9 Watt Heater Increases Soil Temperature Up To And Around 16-19 Degrees Centigrade (dependent On The External Environment). Because Of The Increase In Temperature Germination Starts Early, Irrelevant Of The Weather Outside. medium Size Heated Propagatoradjustable Ventilation For Humidity And Air Controlcrystal Clear Shatter Resistant Lid9 Watt Heated Base Increases Soil Temperature To Approximately 16-19 Degrees Centigradepropagator Measures 38cm X 24cm X 20cmmade In The Uk