This Horticultural Washed Gravelcomes from the Royal Horticultural Society and is ideal for rock gardens, pools, water features, top dressing pots, crocking and drainage. This gravel is washed 10mm quartzite grit This item will be delivered with care and will need someone to supervise its arrival, due to its weight. Royal Horticultural Society endorsed Ideal for rock gardens, pools, water features, top dressing pots, crocking and drainage 10mm size gravel Bulk bag