Package includes 100 plastic wire shelf label holders and 100 matching white blank cards. Made of high-quality plastic and kraft paper, they are sturdy and for long-term use. They are also reusable and are very convenient and easy to install and remove. Label holder measures 3inch (7.6cm) x 1.34inch (3.4cm), white card measures 2.9inch (7.4cm) x 1.2inch (3.1cm). Simple and easy - use the clip on the top to to your desired location, area, shelf, etc. Slide the card into the holder or stick the label to the holder. When you want to reposition the shelf brackets, simply open the clips and apply them to your desired new location. The cards in the card holder and the labels on them can always be easily removed to replace with new cards or labels without leaving any residue or causing the card holder to fall out. USES - These shelf brackets are Perfect for supermarkets, convenience stores, grocery stores, shopping malls, food pantries, warehouses and other places where wire shelves are