High-Tech Pen, ideal for outdoor use at geocaching:

• Writes on wet paper
• Writes on nearly every surface
• Writes overhead or at the vertical wall
• Writes reliable as well at low temperatures
  
  And:
• Very space saving while transported, a real pocket-pen
• Safetyness because of refill is counter-sunk and bolted when transported e.g. in trouser pocket. Refill can not be moved out accidentally.
• Material: anodized aluminium

Bring LogPen in write-position:
Pull head and backside apart and twist them against annother. The LogPen latches savely in the write-position, the refill is moved out and the pen gets to a length of 12,6 cm.

Bring LogPen back to transport position:
A smart twist in reverse direction effects, that the pen glides back to it's inital position, the refill is moved in and locked and the pen has a length of 9,8 cm then. Therefore, it can be carried even in very small pockets.