A very good quality 6in1 survival whistle kit that includes whistle, magnifying glass, signal mirror, compass, thermometer(Ferenheight) and white beam LED flashlight. All pieces are assembled to make a whole piece for easy carriage. LED flashlight module has a button switch and uses replaceble 2x CR2016 Lithium cells(included). Lanyard included. The whistle measures 3 3/4" long 1 1/16"diameter. Color: Olive Green. Packaged in a blister card.