Rock Wool Hydroponic Planting Blocks Growing Cubes Starter Set Hydroponics Propagation Grow Supplies

- These rock wool starter plugs are widely used in hydroponic, starting, cuttings, plant propagation and so on Much easier than starting in soil! They are great for gardening hobby and commercial growers - Size: app.0.98x0.98x1.57in, great-sized to fit a standard flat growing tray - Encourages faster initial rooting and its firmness is guaranteed.Provides 20% Air Space When Saturated: Absorbs nutrient while retaining plenty of oxygen for rapid root growth - Made from rock wool, great for Rooting Cuttings clone plant, germination start and more - Much easier than starting in soil! Predrilled planting holes make and plant propagation a Great for hobby and commecial growers