100PCS 40x40x40mm Rockwool Growth Cube Multipurpose Cuttable Water Cultivation Seedling Block Strong Water Absorption Soilless Cultivation Asbestos Hydroponic Growth Medium Cube

Rockwool. Low Volume Density, Lightweight Construction: Crafted with a low volume density and lightweight material, these blocks are easy to handle and transport. Their lightweight nature makes them ideal for both indoor and outdoor gardening projects. High Porosity, Excellent Air Permeability: With a high porosity rate, these blocks offer excellent air permeability, allowing for optimal airflow around the plant roots. This ensures proper aeration and promotes healthy root development. Strong Water Absorption, Efficient Drainage: The blocks boast strong water absorption capabilities, efficiently retaining moisture for extended periods. Additionally, their excellent drainage properties prevent waterlogging, reducing the risk of root rot and other water-related issues