Excellent quality NGW® heavy duty clear plastic propagation domes with vents will help you create the perfect environment for seeds and cuttings. This is a high-quality professional propagation dome and helps you control temperature and humidity with Adjust-A-Wingble vents. It is constructed from heavy duty, high grade plastic to maximize light penetration and stand up to repeated use. It will conveniently fit standard 10" x 20" propagation flats and come in various heights for small or medium sized starts and cutting. This listing is for the 7 inch Dome Only. NGW will help you double plant quantity with propagation domes.