Attach this clever compass to a pack, a belt loop, your key chain - wherever it's convenient. You'll want it with you for so many reasons. First, the compass is lightweight, easy to read, and comes with a ball chain for easily attaching it when you're ready to head out. It also has a small thermometer, so you'll know what the temperature is wherever you go. On the back of the compass is a wind chill calculating chart in Fahrenheit, including danger wind chill notices. Keep one with your camping gear, one in your car, and one with your 72-hour kit.