2Pcs Matte Black Metal Standard Letter Size Notebook 3-Ring Binder Mechanism,1 inch Capacity,3 O Rings,Loose Leaf Binding Spines Combs Replacement Kit for Personal Organizers Planners
【4】Iron material,nickel plated,3 O ring,round ring binder mechanism
【5】Used for diy planners.HOW to attach the rivets ,plz search tool asin: B09P1RQ1BS,Before you purchase the goods ,plz check the size from the picture in case of buying wrong,thanks.