These TEN (10 each) Berty tubes can be listed as Small containers and will hold a full 8.5X11 sheet of folded paper, but will come with a micro log book for 10 caches (use scissors to separate) and 10 heavy duty seal-able plastic sleeves. I recommend painting them with plastic approved spray paint before hiding them and using a 50# Power Pro Fishing Line - Moss Green as a tether. I usually tie on the tether and then wrap the tube in duct tape before painting. This makes it almost impervious to the sun and weather. The tube is basically as water-proof as a soda tube.
These are much heavier duty and virtually unbreakable. The caps are an assortment of Sports drinks bottles and easily obtainable if yours breaks. Dimensions are 3 3/4 X 1 1/4 inches. You can't go wrong with these heavy duty tubes when it comes to hiding a geocache. Shipping supplies and postage is included and amounts to $4.77 of the total cost, but does not include Ebay fees. Shipping calculated USPS shipping from Houston to lower 48 States. YMMV.
Remember geocaching is supposed to be fun, so happy geocaching! I am a geocaching instructor and a regular contributor to FTF Magazine. My geocaching handle is BaytownBert
Included is a free trackable to add to your collection!