This handy mini greenhouse has everything you need to start seeds indoors. Kit kncludes a heavy duty base tray (21.7" x 12.2" x 3.1" high), reusable insert with a 55 plant plant capacity, 55 large aerated Q-plugs, and 5 1/2" high dome with 2 vents. The extra large plugs remove easily from the insert with no damage to the plant. The unique float system allows consistent moisture for germination and growing. The plugs can be planted directly in your garden or flower border or can be transplanted into a pot for planting out later.