Specification:Material: PlasticColor: WhiteWeight:0., 35g/0., 0007 lbSize:16*2., 3CM/6., 29*0., 90Package Included:10PCS*Optical Vernier PD Ruler 【Easy To Use】Put the notch of the PD ruler over your nose, as close to your eyes as you can, find the middle of your pupil in a mirror, read the line closest to the middle of the pupils. Ultrassist Pupillometers for Measuring Pupillary Distance (PD) with Electronic Instruction Manual, Transparent PD Ruler, Essential Tool for Single PD or Dual PD Measurement This optical vernier PD ruler with smooth surface will not scratch your hands. Feature:Made of high-quality plastic, soft, bendable and durable to use. Soft Plastic For Opticians Glasses Fitting Plastic Pupillary 1Pc Optical Vernier PD Ruler Pupil Distance Meter ... – Grandado Put the notch of the PD ruler over your nose, as close to your eyes as you can, find the middle of your pupil in a mirror, read the line closest to the middle of the pupils. Suitable for hospital, pharmaceutical or medical supplies, used to measure the distance between the eyes of the human eye or the height of the pupil to the bottom of the lens. 【Portable Design】The overall size of this digital callipers for reading pupil distance is about 16*2., 3CM/6., 29*0., 90 , compact in size and light in weight, not taking up too much space, convenient to carry or store. Pupil Distance Measuring Tool Plastic Measure Optical Vernier PD Ruler Pupil Distance Meter Ruler Callipers Measuring 【Mutible Uses】Suitable for hospital, pharmaceutical or medical supplies, used to measure the distance between the eyes of the human eye or the height of the pupil to the bottom of the lens.
