30 Pcs Banana Plug Silicone Test Leads Kit, 4Mm Stackable Banana Plug with Threading Probe, Alligator Clips, Probe Holder, Connection Hose ，Automotive Test Leads for Multimeter1.Essential test lead kit]Stackable banana test lead cable is very soft, flexible and works well. The sturdy banana plugs and insulation greatly enhance the durability and flexibility of the leads. Every electronics technician should have these cables. 2. Multiple combinations The head of the multimeter pen is a combination of banana plug and probe. It can be connected to any other accessory in this kit with a 4mm socket. The combination is flexible