Thanks to its unique compressed air technology, the AirPress Pen is always ready to write anywhere and effortlessly handles unusual situations such as writing upside down, on wet paper, or in freezing temperatures (down to -5°C). It is the ideal companion for outdoor sports, travel, crafts, school, and more. The rubberized grip zone provides a comfortably secure hold even in the rain, with wet fingers, or when wearing gloves. With the durable, extremely stretchable metal clip, the AirPress Pen can be securely attached to a bag or clothing. Ink color: black. Ball diameter: 0.7 mm. Refillable. Refill: BR-SF33, document-proof according to ISO 12757-2:1998. Awarded the reddot design award 2010. Height (mm): 15 Weight (g): 23