Protractor

• The tool is printed on
  30 mil plastic stock with a protective coating. This makes it about the
  thickness and stiffness of a credit card. It's 33% thicker than the
  standard military issue version, so it's less likely to bent or broken
  when you need to use it.
• Rounded corners keep it from wearing holes in your pockets.
• Includes 1:24,000 scale for USGS 7.5 minute topographic maps.