maybe 5 inches long. Optional longing for Leatherman
or Gerber
pocket tools.
I have a SOG Micro Toolclip that I never go anywhere without.
It has a very strong pliers, and 3 blades made of very durable
steel. The blades are: 1) standard knife, 2) really useful saw,
3) flat head screwdriver with a crosshatched file surface on one
side.
Here's a web site with a picture:
http://www.knifepro.com/sog/sog-28.htm