This is a unique necklace which consists of black nylon (necklace) and concrete (pendant). The pendant is hand sanded and polished to bring out the all the lines and edges. No paint is used on the pendant. The different shades of grey is achieved by sanding and polishing. Measurements: Concrete Pendant - 2.5 cm (tallest edge) x 2 cm (widest edge) Nylon Chain at 24" Designed and made in Hong Kong.