COCOGRO BOSS CUBES 6" X 6" X 6" CocoGro(TM) Boss Cubes is specially manufactured to replace conventional growing methods in 6" X 6" rock wool cubes. Boss(TM) is unique in its composition and has been thoroughly washed to remove excess sodium. It is made from 3/4" double sieved coir fibres for increased air delivery to the root zone. Boss(TM) is exceptional because of its multidrain capability. It contains a coarse Coir fibre mat on the bottom of the block to allow for free drainage and keep fibre particles from draining out of the bag. Each Boss(TM) is compressed in a 5 to 1 ratio and is available in 6" x 6", 8" x 8", or 10" x 10" sizes. It comes wrapped in a horticulture grade poly bag that is white on the outside and black on the inside to insure low temperature and no light penetration for healthier root systems. Sold in case quantities only.