About this item High quality material: our vision chart is made of high-quality PVC material, which is durable, not easy to damage, super thick, tear resistant, clear printing, non reflective, waterproof, easy to clean, convenient at home, can help children test power on time, correct vision and give children a healthy body. Appropriate size: our vision test flipchart is 9.45x 26.77 inches. It is made of PVC, waterproof and tear proof. With the appropriate size, you can paste it on any wall you need at home. If you don't need it, you can roll it up. It's small and won't occupy too much space. When you take it out next time, it's still brand-new because it's wrinkle resistant. Easy to use: our eyesight chart is easy to use. As long as you monitor your eyesight for your family or friends at every fixed time, you can use the chart to evaluate your eyesight in a comfortable home, because it is convenient and fast to use, saving you the time to go to the clinic. When you go to the doctor next time, you can directly feedback with the doctor to save time and money. Widely used: our vision chart is widely used and can provide perfect vision test form for optometrists, students, hospitals, schools, families, offices and other children. It can also be used as an eye care expert, ophthalmologist, eye care provider, optician, glasses manufacturer, etc. to provide perfect eye care gifts. Ideal gift: our eyesight chart can be used as a gift for your friend's family to facilitate them to monitor their eyesight and correct their eyesight at any time. This is a guarantee for their health. It is a good small gift. I think they will like it. Please rest assured to buy it. There will be no problem with the quality.