The Cornish Silver Granite Decorative Aggregate from Kelkay makes for a beautiful looking addition to your garden. Stones are 12-16mm size and have an even richer colour when wet. A great way of decorating your paths, patios and driveways, alpines, rock gardens, borders and beds. These stones are made from silver/grey granite chippings. 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 Ornamental or practical Highly decorative Size 12-16mm Bulk Bag (approx 750kg)