The Oyster Pearl Decorative Aggregate from Kelkay makes for a stunning looking addition to any space. Stones are 10-25mm size and are glossy when wet. These stones are truly dazzling and look luxurious, especially when filling a large area. A great way of decorating your alpines, rock gardens, plant pots and water tanks when washed. It is recommended that a minimum depth of 35mm is used when calculating how much you need. 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 8-12m² Multi-purpose Fish Friendly Ornamental or practical Highly decorative Size 10-25mm Bulk Bag (approx 750kg)