Looking for a way to customize your EP1? These pistons will allow you to switch up the look of your EP1 to better match your daily carry. To install, start by unscrewing the thumb stud and then the pen tip. The piston will drop out with the spring and refill. We have found that it's easiest to place the piston on top of the refill and then slide it back into the pen body. This way you can easily align the thumb stud by turning the refill.
▴ Dimensions: 16mm x 7.75mm (0.63" x 0.31") ▴ Weight: 3g (0.11oz)