Ice Blue Rock poly bags are made up of 50mm - 70mm light blue & light grey marble rocks with angular edges. Ideal for rockeries and boarders. Features: Size: 10mm -20mm Colour: Light Blue & Light Grey Shape: Angular Rock Type: Marble Fish Friendly: No Supplied Washed: Yes Lime Free: No Recycled: No Available in 20kg Poly bags or 850kg Bulk bag.