Description: Features: Strong conductive properties, accurate data transfer. The insulating part between the positive electrode and the negative electrode of the for head adopts a transparent insulator. The for head LED lights are white and red (white or transparent when not illuminated, and red after power on). A total of 4 lines, 2 read for head data lines (positive and negative), and 2 LED lines(positive and negative). Specification: Material: Metal Color: As pictures shown. Size: As pictures shown.(approx) External height: 13mm(0.51in) Probe outer diameter: 22mm(0.87in) Locknut outer diameter: 25mm(0.98in) Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 x TM Probe(other accessories demo in the picture is not included.)