Lightweight, stone-wool cubes engineered for fast, trouble-free seed or cutting propagation. The pre-scored sheet (≈ 27.5 × 14 × 2.5 cm) breaks into 50 airy plugs that balance moisture and oxygen for vigorous root development. Neutral pH, inert, and ready for any hydroponic, soil, or coco setup—just soak, sow, and grow.