Getting those cuttings to root just got easier. This higher density, lower drainage foam, primarily designed for propagation of vegetative cuttings, encourages fast root development and optimal callus growth. Its finer-celled design offers greater contact with the cutting’s cut end, for easier and more rapid water uptake. And its higher strength means your cuttings will hold firm right where you put them. These Rootcubes® come in standard 10 x 20 trays.