Picasso is made of bamboo, eco friendly with a carbon fibre tip that never needs sharpening. It has a write out length of 15,000 metres. It is a fantastic gift for artists and doodlers. It won't smudge and can be used upside down or under extreme conditions. Its body is precision machined from bamboo, giving its sleek appearance & eco-friendly nature. Material: Bamboo, Carbon Fibre.