The Scottish Tweed Decorative Aggregate from Kelkay makes for a beautiful looking addition to your garden. Stones, high quality Scottish pebbles and are 20-30mm size. These pebbles completely transform and look stunning when wet. A great way of decorating your alpines, rocks gardens, borders, beds and a 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 Ornamental or practical Fish friendly when washed Highly decorative Size 20-30mm Bulk Bag (approx 750kg)