VIVOSUN 1 Inch Rockwool Cubes, Grow Cubes for Hydroponics, Cuttings, Cloning, Plant Propagation, Seed Startling, 2 Sheets 100 Plugs

Rockwool Cubes Material: This rockwool is crafted from natural ingredients, including 60% basalt, 20% coke, 20% limestone, and a trace of iron slag; They are melted at high temperatures and spun into fine fibers, then compressed into blocks by a unique process, which makes them durable.product.
Excellent Permeability: With a porosity of 95%, this rockwool facilitates optimal oxygen access for plant roots, promoting rapid growth. Its high permeability also fosters the formation of strong and healthy root systems, creating an ideal environment for root development
Sterile & Water-Retaining: This rockwool is inorganic and sterile; It won’t harbor any harmful fungi that could harm your plants; It also holds water for a long time, ensuring your plants get enough hydration and nutrients
Easy to Use & Observe: These light and fluffy rockwool cubes are easy to cut to any size; Each cube has a hole for your seeds or cuttings, and once the roots develop, you can effortlessly transfer the cubes into any growing medium. The flat format also simplifies observing growth progress.
Multiple Applications: This pack contains 2 sheets of rockwool, with 100 cubes each; They are ideal for hydroponics, plant propagation, cloning, cuttings and more; These rockwool plugs are much easier to use than soil and are suitable for all growers