Portland pebbles are a collection of deep red brown coloured decorative stones with lighter accents in a variety of irregular shapes and sizes with a smooth finish typically between 20 and 40mm in size an eye catching addition to a garden or border will compliment any water feature or pond also suitable for use in an aquatic planter or fish tank delivered in a bulk bag on a pallet onto a solid surface only approximately 850kg 060m3 of portland pebbles decorative stone is supplied