Results: increases the porosity of the potting mix which helps to keep the soil loose and airy. Aims to: Enhance soil microbial life. Weight: Each brick is 650g in weight. Coco Coir Bricks: Spruce up your garden with two Coco Coir bricks. How to use: Place the brick into a container, add warm water and let it sit until the water is absorbed. Contains: Natural Enzymes and plant nutrients. | Set of 2 Coco Growing Bricks | Wowcher