1. Soft silicone wire, soft silicone flame retardant, good material flexibility, strong tensile strength, flame retardant and frost resistant. 2. Plug dust plug, insulation sheath safety design, multimeter plug, suitable for 99% of multimeters on the market. 3. Universal interchangeable probe lead for multimeter, interchangeable gold-plated needle, soft silicone wire, stainless steel material. 4. Reversible head design, super-hard gold-plated tip, sharp probe, comes with two probe tips, smart and delicate, precision maintenance is essential. 5. Suitable for measuring pins of electronic components, durable, high precision, anti-oxidation. 6. High-precision steel needle, delicate and smart, precision measuring components, can be reached even in narrow places. Specification Name: Stainless steel watch pen wire. Model: RP15. Withstand voltage: 1000V. Withstand current: 20A. Technology: Blue, red, yellow, and black four-color molding. Conductor outside diameter: 3.5mm. Product length: 110cm. Wire material: Double silicone wire. Needle diameter: 0.1/0.2mm Color: As Shown Material: Silicone + Stainless Steel Package Contents: 1 x Stainless steel watch pen wire set Only the above package content, other products are not included. Note: Light reflection 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.