These "preform" geocache tubes are the early stage of a 2 litre soda bottle. They are virtually indestructible, dishwasher safe, and they are clear so you can see everything inside. (All preforms have a very slight greyish tint). Caps are included, and each one comes with two waterproof log sheets.
Or, turn it into a kit with everything you need to make your own soda bottle tube cache. Caps are included, and each one comes with two waterproof log sheets, a making tracks geocache sticker, and a geocache pencil.
Each preform measures approx. 14cm tall, and each holds about 60 ml. The internal diameter is 21.6mm and the internal length is 130mm.