The Black Sea Decorative Aggregate from Kelkay makes for a beautiful looking addition to your garden. Slate chips are 60-100mm size and still impressive when wet. Perfect for alpines and rocks gardens, water tanks and a fantastic gabion filler. It is recommended that a minimum depth of 60mm is used when calculating how much you need. Completely fish friendly when washed. This item will be delivered with care and will need someone to supervise its arrival, due to its weight. Due to this product being made from natural materials, coverage distance may vary. We have calculated that this bulk bag will cover approx 5-7m² Multi-purpose For alpines and rocks gardens, water tanks and a fantastic gabion filler Ornamental or practical Highly decorative Size 60-100mm Bulk Bag (approx 750kg)