Review on Enhanced 22AWG Premium Breadboard Jumper Wires - 20% Extra Red and 🔌 Black Jumpers, Square Head 0.1'' 10 Vibrant Colors - 120-Pack by Hellotronics (10CM, M/F) by David Batte

I have a bucket full of these jumper wires with "round" ends that usually exit with glue where the wire enters the round sleeve. They're cheap and they work most of the time. The problem with them is that the portion of the wire that goes into the breadboard is large enough in diameter to make contact with the female part on the breadboard. So often this connection has been weak and unreliable and could cause your electronics project to malfunction and it is almost impossible to figure out the problem without an oscilloscope or analyzer. THESE SWEATERS ARE AMAZING! They are durable and fit snugly on the breadboard. I won't be buying those cheap round heads again. They are absolutely worth every extra charge! Get them and you'll save yourself headaches in the future.