The Super Sprouter� Simple Start� Micro Greenhouse Kit is great for smaller projects. Ideal for separating plant or seed stock. This kit includes an 8 in x 12 in grow tray, 24-site tray insert pre-filled with Grodan� MacroPlugs�, a 4 in humidity dome with adjustable vent and the Super Sprouter� Art of Propagation booklet with expert growing tips. This product is great for small spaces, or you can fit two on one Super Sprouter� Seedling Heat Mat. Make it simple with the Simple Start� Micro Greenhouse Kit.