Seed starting kit. 2-1/4 In. cells are pre-filled with high quality fertilized soil-less mix designed especially for seed starting. Features raised ridges on the bottom of the watertight tray to keep plant roots above the water line, providing maximum air circulation to encourage healthier root development. Perfect beginning for seed starting and cuttings development. Number Of Cells: 36 Cells Size: 22 In. W. x 11 In. D.