Simple Soil - 3 Pack of Premium Organic Coconut Coir Bricks for Home Gardening, Microgreens 4.9 Pounds Extra Value 3 Pack - 4.9 Pounds - 650g Per Brick Soaking the coconut coir for 30 minutes results in 2 gallons of ideal growing medium The compacted coconut coir bricks are 4" x 8" x 2.375" in size A great addition to our Simply Good Box for growing micro greens Simple Soil by Home Greens is premium organic coconut coir compressed into expandable bars