This very affordable digital map measurer has the following features:

• Measures KM, MILE & NAUTICAL MILE with 10 standard & 1 user input scale for each measuring mode
  
  
• Conversions for KM-MILE-NM and CM-MM-M-INCH-FEET
  
  
• Metal wheel
  
  
• Pen clip design

Includes batteries & detailed instructions.

All for less than $20!

For full product information and to buy online go to http://www.area51.net.au/contents/en-us/p778.html