As a standard Nanoramic will provide the ultracapacitors with a short nickel tab to the positive and to the negative terminals.
The positive terminal is the pin, and the negative terminal is the bottom of the can as seen below.
The nickel tab can then be connected to using clips or other testing hookups. The tab can also be soldered to for an even better connection.
The nickel tabs can also be removed and a custom module or socket can be built to hold it in place. The ultracap will also be provided with heat shrink around it, but it should be noted that the entire can, bottom, and top surface are all connected to the negative terminal.
For more connecting and handling information you can read about it in the attached Users Guide.