["brand new and high quality\nFeatures:\nMade of high quality ABS, it is solid, durable and high performance, long service life.\nHigh precision PD ruler with clear optical lines, can be easily operated and measure accurately and quickly.\nIt can measure left or right monocular,and display the results of two eyes separately on LCD screen.\nWith adjustable adjustable knob, it can be used for different subjects of sight, so that the measurement of interpupillary distance becomes simple and accurate.\nStainless steel stand for holding your forehead, soft rubber holder for your nose, comfortable to measure.\nLED light source, low consumption. \nAnd the ruler will turn off automatically when it reaches set value or without operation in 30s , energy saving and prolong battery life.\nPupilometer only, other accessories demo in the picture is not included!\n\nSpecification:\nPowered by: 2 x AAA Battery (Not included)\nMaterial: ABS\nPower: 5W\nError: ≤ 0.5mm\nPupil distance: 40-80mm\nLeft/right pupil distance: 20-40mm\nSize: app.21x13.8x5cm/8.27x5.43x1.97in\nColor: for Grey and Green\nQuantity: 1 Pc\n\nNote:\nNo retail package.\nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Pupilometer"]