Seed Starter Trays (720 Cells) for Seed Germination +10 Plant Labels (120-6-cell Trays) Great for Seed Starting and Cloning 720 cells, (120 trays). Will Fill 10- 1020 Flats Each cell within the tray measures 1.55" top diameter x 2.33" deep Each tray measures approx. 5 1/4" x 3 7/16" x 2 3/8" Includes 10- 6 inch labels