1. The wall eye chart features a large letter or symbol at the top with progressively smaller letters toward the bottom, down to 20/20 or better. 2. This eye chart helps measure visual acuity at a distance of 20 feet from the viewer. 3. Made of high-quality materials, the chart is easy to clean if it becomes soiled. 4. Constructed from thick PVC material, the chart is durable and resistant to folding, unlike paper. 5. The printed text is clear and adheres securely to the surface. Specifications: Size: 22 (height) x 10.8 (width) inches, thickness 0.3mm Chart weight: 52.2g Color: White Material: PVC Package Contents: 1 x Eye Chart 1 x Eye-covering spoon (style shipped at random) 1 x Indicator stick 4 x Double-sided tape Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by ±1–3 cm.