Features: Light weight resin bookmarks thumb finger book page holder enhances reading comfort by securely holding books open, great for novels and textbooks. Engineered with ergonomic thumb shaped designs and resin construction, this thumb book page holder resists deformation while reducing more pressure than standard plastic alternatives. Suitable for students annotating study sheet, office professional referencing documents, and book lovers enjoy lengthy reading. Maintains page stability in libraries, coffee shop, traveling, or outdoor settings while preventing hand fatigue during extended textbook reviews or leisure reading. This reading accessory not only serves as functional book page holder tool but also makes thoughtful holiday present for friend and family on Christmas, Birthday, Valentines Day and Thanksgiving. Specifications: Component: Resin Color: 01, 02, 03, 04, 05, 06 Thumb Book Holder Size: Approx. 85x35mm/3.35x1.38in Inner Diameter 20mm/0.79in Weight: Approx. 52g Package Includes: 4Pieces Thumb Finger Book Page Holder note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color