Additional information:
There are several makers; the brand locally was Martyr, and specs for barrel- shaped are inside diameter:
1 1/8” 15 oz
1 1/4” 17 oz
1 1/2” 32 oz
1 3/4” 48 oz
2” 62 oz
The allen screws allow you to expand the anode in a balanced fashion to slip it on and off, and to use different thicknesses of wrapping. Yes, it can pinch the skin, but not if you have the right diameter. I have only thin bandage wrap on now. It hangs pretty much straight down and is not noticable, except you may appear well hung (sorry) now and then. The mouse pad works well, and allows one to use the heavier anodes with larger ID. Two layers would let me use the 62 oz., since I am only 4 3/4 flaccid.
The donut-shaped anodes are 1 1/4” thick, and are comparable in weight, so it depends on how long you are how many you could stack. I would like someone with more experience with ADS than I to evaluate it.
Slezak