Model: P1503 Multifunctional Multimeter Replaceable Guilded Needle Probe Kit 1. Easy to read: "+" and "-" signs of near probes 2. With rubber wrapped, it is comfortable to hold 3. A universal multi meter plug-in, convenient to use, 4. It is one of the useful tools that will bring convenience to your work email Color: Black+Red Material: copper + ABS Red: positive Black: negative. Professional test of maximum voltage 600V/ 20A. Package Content: 2* Protective Cap 4* 2mm needle 4* special needle 2* 4mm banana jack harpoon 2* 2mm test hook 2* multimeter pen line 2* 2mm inner spring to 4mm banana plug 2* 4mm jack alligator clip Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.