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Start your hydroponic gardening with these Rockwool Grow Cubes designed for efficient seed germination and healthy root development. Made from natural basalt fiber, these starter blocks provide a clean and stable environment that supports strong plant growth from seed to transplant. Each cube is engineered for excellent water absorption and air circulation, helping seeds germinate faster while maintaining balanced moisture levels. With a uniform size and pre-formed structure, this seed starter kit is ideal for hydroponic systems, indoor gardening, and plant propagation setups. Package Includes 1 × Rockwool Seed Starter Sheet (50 Cubes)