These are 6" long jumper wires with male connectors on both ends. Use these to jumper from any female header on any board, to any other female header. Combine these with our female to female jumpers to create a male to female jumper. Multiple jumpers can be connected next to one another on a 0.1" header. Comes in one pack of 20 jumpers (colors shown). Each group of jumpers are connected to each other and can either be pulled apart in any quantity (from 1-20, of course) or kept whole based on you needs.
These jumper wires can be used for pretty much everything! They work great with breadboards, Arduinos, and really any 0.1" pitch prototyping board.
Based on 2 ratings:
Good jumpers at a good price. Nice to have the ability to group them together if you want, or just tear them apart if you don't.
These are ok. The plug tips are a bonus. The wire and jacketing itself is pretty cheap and thin though. You have to be really careful as you peel them since the jacket can split off and tear from around the wire exposing some of them. They are a thin gauge and will be permanently curled after you peel them apart too.
They are a neat idea to be used sparingly on your board when you are de-connecting/re-connecting something. I don't think they effectively replace the use of the solid wire strands in breadboards or female header strips.