The ener-G tray is available in three different strips configuration's. The ener-G tray is available in a solid 78 tray , used for most any smaller cutting or seedling or a double 26 strip designed for Geraniums and the 13 strip that was designed for Poinsettias.
Plants started and grown in the ener-G tray will grow the best roots and establish faster than other commercially available trays.