These are transparent, thin sticky notes! I loved using them because they're so easy to use! Specifications: Transparent slim index tabs Size: 44x6mm Quantity: 20 sheets x 9 Number: 1 The narrowest type. Great for detailed page organization and when you need many index tabs in thick books or documents. They come in many colors, which is convenient for color-coding. I also sell many other items, such as hair accessories and rings, so please take a look! ☺︎ These have been stored at home. Please refrain from purchasing if you are concerned.