OGP Cache Tubes are extremely rugged containers ideal for carrying small items that need to stay dry and uncrushed. They're also popular in the geocache community as a cheap, durable way to cache log sheets. This would be a great way to carry a fire kit, a USB key with your important documents, money, an emergency fishing or snare kit, bait, etc. Made from Impact-resistant PET, these rugged tubes resist damage from falls, drops, impacts, and crushing.