This tray measures 10" x 20" x 2 1/2" and is perfect for all your propagation needs. You can easily sprout seeds or root cuttings in this multi-purpose tray. These trays are durable yet inexpensive and can be reused over and over again. Pair this tray up with the 72 cell tray insert and some rockwool multiblocks and you can start enough seeds or root enough cuttings for the whole year. Also check out the Clear Domes for added humidity and a perfect environment for new cuttings.