Alligator clips (or Crocodile clips, if you prefer) are likely to be the most useful thing on your workbench besides the workbench itself.

Whether you're just trying to make a few quick connections to test your circuit or having trouble making your multimeter leads stay where you need them, these spring-loaded clips are a workshop must-have.

Each lead in this pack of tern is 50cm long with a rubber shrouded alligator clip on each end.
There are five different colors, you get two each of: red, green, white, black and yellow.

Dimensions: 50cm long or 0.000269978402 nautical miles