Check the listing for details. Bosmere Coco Fiber (Coir) Compressed Brick, 22 oz (Makes 2.5 Dry Gallons). Condition: New. Listed at 18.95 USD. Bosmere Coco Fiber (Coir) Compressed Brick, 22 oz (Makes 2.5 Dry Gallons) PRODUCT DESCRIPTION Easy, convenient and a great alternative to using peat.Measures: 2.5in H x 8in L x 4in W Excellent alternative to peatCoir is a premium growing mediumHigh water holding capacityLightweight with great aeration100% natural and renewableCompressed brick easy to work with and transportMakes 2.5 dry gallons of growing medium Compressed coco fiber brick can be used as a base for homemade composts or added to aerate garden waste composts. The compressed coir will expand to three times its size when rehydrated with water. Completely natural and fully renewable. The bricks are made from ground coir and compressed into a brick form for easier transport and shipping.