U Brands Book Rings, 1-Inch Capacity, Silver Metal, 100-Count Conatins 100 silver metal book rings Each book ring features a 1" diameter, holding up to 175 sheets of paper Sturdy metal construction opens, closes and locks with ease Hold together loose leaf hole-punched paper, hang the book ring anywhere, use it as a key ring and more! Book rings are reusable, providing longtime use