1、PET Screen Protector: Special matte PET material, suitable for assisting in beautiful handwriting and practicing calligraphy and other arts, only suitable for iOS tablet Pro 12.9in. 2、Better Writing: Special surface treatment significantly reduces friction. Straight lines, circular, and curves allow for smoother writing and cleaner handwriting. 3、Clean Lines: The paper like texture creates an accurate representation of using a pencil on paper. High touch response makes small characters and letters easier to write. Perfect for clean and sharp handwriting. 4、Higher Transparency: The screen film has higher transparency. Effectively resist glaring and reduce light reflection, allowing you to work outdoors with strong scratch resistance, oil resistance, blue light resistance, excellent touch, high definition, bendability, and bubble free features, providing a continuous and smooth touch and writing experience. 5、Free of Bubble: The airless design and silicone rubber cover use self adsorption adhesion to more effectively disperse bubbles. You can easily push small bubbles to the edge with your fingers. All the accessories provided are helpful for easy use.