Our new Coir Blocks are approx 650 grams in weight. Coconut Coir is extracted from the husk on the outer shell of a coconut, because of its superior water holding capacity, excellent air space and drainage, coir is a useful soil amendment for potted plants, containers, gardens and as wormery bedding. Just gradually add water until the coir is damp to the touch. It can also be added dry and broken up to soak up extra moisture in wormeries, to help you produce the best vermicompost you can. View our new ‘Building Your Wormery Guide’ which includes a step-by-step process for setting up your wormery.