Use the Hydro Crunch Clear Plastic Dome with a standard 10 in. x 20 in. propagation tray flat. Tall domes are 7 in. tall and perfect for larger cuttings and seedlings. Tall propagation domes create a humid and warm environment for general propagation, clones, and seed germination. Hydro Crunch 7 in. domes come with adjustable vents to control heat and humidity with a built in handle for easy removal. As a general guideline seedling and clones enjoy temperatures of 70-80 degrees and a humidity range of 50%-60%; please be sure to research your particular plant as temperature and humidity requirements will vary during propagation for different plants. Also includes the Hydro Crunch 10" x 20" Propagation Flat Grow Trays without holes that are perfect for the propagation of plants. Perfect for use as a drip tray, hydroponic growing and seed starting.