Sending out an SOS is much easier when you have the Tru Flare Pen Launcher on hand. This orange pen is designed to send out flares visible at distances up to 3 km (1.86 miles) during the day and 12 km (7.5 miles) at night. It can be equipped with a bear banger or whistle to deter wild animals. Compact and lightweight launcher is portable and easy to carry. Compatible with rim fire flare cartridges only.