DescriptionThe eye occluder is shaped to occlude eye without pressure. It is constructed of durable black ABS plastic.Great instrument for optometrist. Solid color, non-slip design on the handle, suitable forUse for eye chart exam. Fit for all people,Preschool / kindergarten children, school children / adolescents, adults, and the elderly.It's a must for family ,school and hospital.Feature- Color: Random Color. - Material: ABS. - Size: About 29.5 x 5.8 x 1cm. - Shaped to cover either eye during an eye examination. - Made plastic anti-slip material. - Good quality, can be used for a long period of time. - Solid color, non-slip design on the handle, suitable forUse for eye chart exam. -Fit for all people,Preschool / kindergarten children, school children / adolescents, adults, and the elderly.It's a must for family ,school and hospital. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!