The Foscarini Twiggy Terra spare diffuser is an exchange diffuser for the floor and arc lamp Twiggy Terra. The material of the diffuser is a composite material based on glass fiber and varnished. The size of the diffuser is in diameter 46 cm and height 29 cm tall. There are offered the colors white, black, indigoblue, greige (a mixture of grey and beige) and red. The manufacurer designates the colour red as purple or crimson.