Stylus Feature Is Compatible With Most Touch Screen Devices , When You Are Ready To Write, Simply Remove Cap , The Cap Can Be Screwed Onto The Opposite End Of The Pen For Easy Storage. , Equipped With A Glass Breaker , Made Of T6061 Aircraft Aluminum , Overall Length Is 5.7" , Weight w/Out Box: 1.6 Oz , Refill Info: Schmidt 900m Parker Style Black Ball Point Refill