Note - price is for 1pc
Rockwool is a horticultural growing media made from plant fibres. Once the fibers are spun they are then compressed into a mat which is then cut into slabs and cubes. Rockwool is chemically and biologically inert and creates the ideal growing medium for hydroponics. Since its development in Denmark in the early 1970's, rockwool has become the major vegetable and flower production medium throughout Europe and North America.
HIGH DENSITY ROCKWOOL
size of 1 cube is 3cm x 3cm x 4cm