Rockwool Cube & Plant Net Cup Set: Our set contains 50 rock wool cubes and 50 black plant-growing net cups. This kit can help you to do soilless cultivation very well. Compared with soil planting, rock wool cubes can steadily supply sufficient nutrients and oxygen to the plant roots, supporting and fixing the roots well. Perfect for hydroponic systems, garden towers, clone plants, greenhouse planting, etc.
Ideal Seed-Starters: This 1" square rock wool block is the ideal size for seed germination and seedling cultivation, and can hold its shape well without falling apart, making it easy to transplant. There are planting holes in the middle of the rock wool block, so it is easy to use immediately after getting it. We have made a pre-cut between each rock wool plug, and you can choose to cut them with scissors.
High-quality Materials: Our rock wool block is made of rock inorganic fiber, without glass fiber, which is very safe, has good air permeability and water retention, and lightweight and is easy to handle, which is the best substrate material for soilless cultivation. It not only can greatly reduce the loss and volatilization of water and fertilizer in traditional soil cultivation but also can be cultivated on the roof, balcony, corridor, and wall without being limited by the site.