This is a 10-pack of wires that are pre-terminated with an alligator clip on one end and a female header on the other. Alligator clips are a staple item for any workbench or makerspace, and with these cables you will be able to easily incorporate those clips into a breadboard, development platform or anything else to which you would normally be able to attach a hookup wire.
Each alligator clip with female header cable has a wire length of 30cm (that's a little less than 1ft) and a port that easily accepts a standard 0.1" connector.