This eyepiece accessory is an essential tool for optometrists and eye care professionals. Its matte finish ensures that the userand 39 s line of sight is not affected, allowing for accurate results during optometry exams. The ergonomic design of the eyepiece ensures comfortable use and prevents slippage, making it easy to use during exams. Features -Color:Black -Material:Leather -Size:19.00X17.50X1.00cm or 7.47X6.88X0.39in - Made of goodmaterialwith smoothly finished edges, light and large enough to easily cover the eye. - The sunken design of the eye occluded allow the eyes to be covered without pressure during an eyesight examination. - Combined with your eyes chart, lead you always take care of your eyesight conditions. - Fit for various age of people, kindergarten children, adolescents, adults, and the elders. - Itand 39 s a must-have tool for family, school and hospital. Can be used for a long time.Packing list1 x Eye Occluder