Permeable Paving Services include but not limited to graded, washed and kiln dried aggregates / pebbles our stocked items are 3mm to 6mm suitable for the permeable paving industry. We have a great range of colours it will suit just about all colour range in the landscaping industry. If we don't have the colour you need let us know send us a sample or a colour pallet and we will endeavor to get it in for you. All pebbles are washed in recycled rain water we don't use any chemicals in our washing