These are standard sheets of Rockwool Cubes. Each cube is single use and the sheet contains 200 cubes.
Rockwool is an inorganic material made from Basalt and Chalk. It is heated to a high temperature and spun into fibers. These fibers are then formed into cubes. These cubes provide the perfect medium for planting seeds that will later be transplanted.
Also included in our Aqueduct Refill Packages, and with every aqueduct sold.