The 5col Survival Supply Cache Tubes are clear plastic soda bottle preforms with caps that are ideal for carrying small items that need to stay dry and uncrushed.
With a capacity of 1.5 fl oz, these tubes are weatherproof, airtight, and can withstand submersion, overpressure, and underpressure (up to a point).
They come with an anti-tamper ring that lets you know whether the tube has been…