4" Blocks, the first natual and organic alternative to stonewool blocks.  CoCo blocks are manufactured out of coir (coconut fibres)   The Coco block is designed to hold slightly less water than a stone block in order to improve early root development.

 

Available in 10cm 4" blocks and with preformed plug holes to fit the 30mm coir propagation pellets allowing seamless transfer from the initial propagation stage and fast root development.