Key Stone is a stone available in a wide range of different colours and suitable for many different types of installation. The collection is produced using the innovative high-definition inkjet digital system (Full HD) to create a range of patterns with infinite variations. Available in six sizes (45x90 cm, 60x60 cm, 30x60 cm, 45x45 cm, 30x60 cm and 15x15 cm) and four colours (Avorio, Grigio, Beige and Noce).