High-Quality Material: These Clay Balls Are Made From Natural, Kiln-Fired Clay, Ensuring Durability And Longevity. The Firing Process Creates A Hard, Porous Structure That Retains Its Form And Functionality Over Time. Lightweight And Porous: The Lightweight Nature Of These Expanded Clay Aggregates Makes Them Easy To Handle And Ideal For A Variety Of Gardening Applications. Their Porous Structure Allows For Excellent Aeration And Water Retention, Promoting Healthy Root Development. Optimal Aeration: The Round, Porous Structure Of Leca Balls Ensures Superior Airflow Around Plant Roots, Preventing Root Rot And Promoting Vigorous Growth. This Aeration Is Crucial For Hydroponic And Aeroponic Systems, Where Oxygen Delivery To Roots Is Essential. Efficient Water Retention: Leca Balls Efficiently Retain Moisture While Allowing Excess Water To Drain Away, Preventing Waterlogging And Ensuring Roots Receive Consistent Hydration. This Makes Them Ideal For Use In Aquaponics Systems, Where Maintaining The Right Water Balance Is Key. Versatile Use: Suitable For A Wide Range Of Applications Including Hydroponics, Aeroponics, Aquaponics, Aquaculture, And Even Traditional Soil-Based Gardening. They Can Be Used As A Growing Medium, Soil Amendment, Or Decorative Top Layer For Potted Plants. Eco-Friendly: These Clay Balls Are Reusable And Sustainable. After Each Use, They Can Be Cleaned And Sterilized For Reuse, Making Them An Eco-Friendly Choice For Conscientious Gardeners. Pack Size: This 1 Kg Pack Is Perfect For Small To Medium-Sized Gardening Projects, Providing Enough Leca Balls To Support Several Plants Or A Small Hydroponic Or Aquaponic Setup.