Meinvshe 4 Pack Emergency Survival Whistle, 3-In-1 Emergency Whistles With Compass And Thermometer, Loud Safety Whistle With Lanyard For Outdoor Hiking (Green-4)Features In size of 2inx11inx08in, only 16oz Survival whistle with a lanyard, easy and free to take during your outdoor sports2 pieces per pack, and there is a compass and a thermometer on ..