The North Sea Cobbles Decorative Aggregate from Kelkay makes for a beautiful looking addition to your garden. Cobbles are 50-80mm size and are glossy and even more colourful when wet. A great way of decorating your borders and beds, gabions and a water tanks when washed. It is recommended that a minimum depth of 60mm 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 5-7m² Multi-purpose Fish Friendly Ornamental or practical Highly decorative Size 50-80mm Bulk Bag (approx 750kg)