200PCS Grow Starter Rockwool Cubes Hydroponics Plant Net Cup Basket Aquaponic AUSpecification: Rockwool Cubes Size: about 25x25x40mm Rockwool Cubes Material: rock wool Rockwool Cubes Color: green Instructions: Preparing and planting in rock cubes. Soak in water for 2 minutes. Take out from the water and place for about 15minutes. Put seeds into the hole of cubes. Spray water after seed inserted. Place it in a seed tray. Mesh Cup Size: 50*38. 5mm Mesh Cup Colour: Black Package included 100pcs Rockwool Cubes+100pcs Mesh Cup+15M 6mm