Sufficient Quantity: the package includes 30 pieces of clear plastic label holders, comes with 30 sheets of card paper; The combination is convenient for you to use, enough to easily meet your various demands; You can also share them with your neighbors, friends, teachers and so on Suitable Size: each bookshelf label measures approximately 20 x 13 x 2 cm/ 7.9 x 5.1 x 0.8 inches; ; not take up much space when applied Reliable Clear Plastic Material: made of quality plastic material, this bookshelf label holder is light and sturdy, not easy to break or deform, serving you for a long time; With high visibility, you can see through the words on the labels; Moveable Design: our library shelf markers allow you to place and replace at will, and you can simply put labels into the markers, convenient for you to organize and mark more easily, which will be a good helper in daily life or at work Wide Range of Use: these plastic shelf markers are suitable for most shelves that more items frequently, which can be applied to libraries, offices, stores, schools, book stores, study rooms and more; Not only can they save your time and energy, but they can also help you put things in order Color: Transparent Color Material: Pvc Package Contents: 30 Pcs Moveable Shelf Label Holders 30*cardboard