Coco peat / Coir Blocks are made up of 100% natural and organic coconut fiber husk particles.Coco peat acts as a biological control against plant pathogenic fungi. Coir peat or coir dust can hold large quantities of water, just like a sponge. It is used as a replacement for traditional peat in soil mixtures or as a soil-less substrate for plant cultivation. A single Coir Peat Block is hydrated by adding water which will slowly expand to up to 80-85 liters of coco coir growing medium Specifications Coco Peat Blocks (Washed/Unwashed) Size - 30X30X15 CM Moisture -