【Composition Tool Kit】：Includes 4 kinds of composition finder card: Rule of Thirds, Fibonacci, Golden Ratio, Leading Lines great for photography, ainting and drawing. 【Comes with Card Holder】: Complimentary leather card holder for storage, it can neatly store the viewer cards separately, easy to use it anytime and prevent loss. 【Premium Materials】: High quality PC material, crystal clear and not easy to deform.It will not blur your vision, help you see the “real” color, durable, lightweight and portable. 【How to use】: 1.Directly point at the landscape, making it easier for you to find the perfect proportions hidden in it.2.Put it on the camera display screen or your creative drawing to make your work more harmonized and perfect! 【Credit Card-Sized 】: About 85x54mm (3x2 inches), you can easily put the photographic composition tool in your purse, pocket or camera bag and access card anytime you want to take a picture or painting. 【Package Contents】: Composition Finder Card ×4, Composition Example Card ×5, ND Filter Shutter Speed Comparison Card ×1, Exposure Triangle Card ×1, Leather Card Holder ×1. JJC Golden Ratio, Fibonacci & Rule of Thirds Composition Tool Credit Card-Sized View Finder/Viewer for Photography, Painting, Drawing