Portable Thumb Book Page Holder Transparent Thumb Bookmark Page Spreader for Reading Book Lover Boys Girls Various Sizes Book Page Holder Clear Page Spreader Transparent Thumb Ring Page Holder Thumb Bookmark Acrylic Book Reading Accessories for Teachers Book Lovers Bookworm Literary PresentFeatures: 100% brand new and high quality100% brand new and high qualityProduct features: Book page holder allows you to read with one hand holding the book, which can make room for the other hand; When you need to hold a book in one hand and do other things with the other hand, such as cooking, teaching, etc., the page holder can make you more convenient.Acrylic material: Clear page spreader is made of transparent acrylic material, so the surface of the page holder is smooth and glossy; It is very textured in the light, which can improve your reading experience.Thoughtful design: The curvature of the acrylic book reading is suitable for most open books, and the hole in the middle is polished smooth, so that you can hold it with your thumb without discomfort.Pragmatic gifts: these thumb ring page holders are surprising and practical gifts for those who like reading, suitable for teachers, students, librarians, bookworms, writers, bibliophiles and so on.Measurement: The large book page holder hole diameter is about 2.5 cm/ 0.98 inches; The medium hole diameter is about 20mm/0.79 inches; The small one hole diameter is about 19mm/0.75 inch; 3 Different sizes to fit different finger sizes.Specification: Material: AcrylicS Size: Approx. 76x32mm/2.99x1.26 inches Hole Diameter: Approx. 19mm/0.75 inchesM Size: Approx. 80x35mm/3.15x1.38 inches Hole Diameter: Approx. 20mm/0.79 inchesL Size: Approx. 86x38mm/3.39x1.5 inches Hole Diameter: Approx. 25mm/0.98 inchesType: S,M,LColor: TransparentPackage Includes: 1 Piece Thumb Bookmarknote: 1.Please allow 1-2cm errors due to manual measurement, make sure