Check the listing for details. 2 Pack 12 Hour Light Glow Sticks Emergency Survival Camping Hiking Kits. Condition: New. Listed at 7.99 USD. 2 Pack of Light Sticks 12 Hour Last for a full 12 hours Indispensable for instant light after a disaster or during a power failure Light sticks are waterproof, do not need batteries, are inexpensive, and are disposable They can tolerate high pressures, such as those found underwater They are used as light sources and light markers by military forces, campers, and recreational divers doing night diving Light sticks are considered the only safe light source immediately following an earthquake, due to the fact that they do not use any kind of electricity to work, and there is no danger of sparking, because they do not have batteries or contain electrified filaments like normal flashlights They are safe for use in explosive environments Specifications Dimensions: 6" x .75" Weight: 26 Grams