2 in 1 Combo Kit: Snellen eye chart with PD ruler and eye occluder 2 in 1, easily use the eye occluder function to cover your eyes for the eye vision test and the PD ruler function to determine your pupil distance
Professional Standardized Eye chart: Easily to measure visual acuity at distance of 6 feet from viewer providing distance equivalent from 20/200 to 20/20, conveniently fits in pocket and can be used in places where there is limited space
2 in 1 Design Ruler: Simple eye occluder featured with pupil Distance (PD) measuring range from 20mm~40mm each side, perfect for either single PD or Dual PD measurement. Numbers are printed both sides
Great Value: Perfect eye care gift for optometrists, eye care specialist, eye doctors, eye care providers, optician, eyeglasses makers and so on
Package Included: Plastic eye chart X 1, PD ruler with eye occlude X 1, efficient eye chart kit needed for an eye test