Always be prepared for adventure with this handy 4-in-1 Explorer Navigation Tool – a must have for all explorers! Check the temperature with the thermometer, find out what direction you’re headed in with the real compass, signal friends with the signal mirror, and announce your location to everyone with the whistle. Kids will always be prepared for adventure with this handy 4-in-1 Explorer Navigation Tool from the National Geographic Outdoor Explorer Series. A must-have for all explorers, it functions as a compass, thermometer, whistle, and signal mirror all in one. It comes with a carabiner so kids can keep it close at all times. The Explorer Navigation Tool includes an Explorer Activity Guide for great fun outdoors. For ages 5 and up.