The MAT4+ Iago Gold by Vittorio Martini 1866 is chunky, heavier hexagonal interpretation of the MAT4+ triangular system. The pen has 6 different modes, and can be used as either a ballpoint pen, pencil, crayon, highlighter, touch and brush pen enabling brush strokes on touch screen devices.

Coming in a large handmade presentation box the contains the pressurized ballpoint pen, & changeable refills: n. 1 pc graphite, n. 1 pc coloured pastel, n. 1 pc highlighter plus the Metal Giunto sharpener and desk stand.

The MAT4+ Iago is made in Bologna, Italy by Vittorio Martini.

The basic MAT4+ comprises a pen and one refill.  The pen comes in a number of colours, sizes, materials and weights.  The basic shape is a rounded triangle – comfortable and convenient to use, and available in acrylic, wood and metal.  The metal pens are heavier.

The Iago is a chunkier, heavier, hexagonal interpretation of the system.