Marks on almost all kinds of dry surfaces Convenient quiver cap with special clip for perfect one handed handling Permanent alcohol-based ink , removable from glossy surfaces with alcohol and other usable solvents Works up to 24 hours uncapped Extended tip made of stainless steel – self-adjusting and patented: up to 3 times more marking capacity by using full 7 mm of the fiber nib’s length of abrasion, instead of 2 mm Nib can be twisted several times by 180° - for a "second, third, ... life" Move the telescopic tip back with pincers Tear out the nib wick and turn through 180° Insert the nib wick again and move the telescopic tip forward