Nickel Key Ring (1 1/4in., 24/pcs) by Paper Mart Split key ring connectors are made of durable steel and plated with bright nickel. Inside diameter of 1 1/4in. ring measures approximately 1in., while the outside diameter measures approximately 1 1/4in. Thickness of metal rings measures approximately 3mm or .118 inches. Can be used for a variety of things such as keys, fasteners, craft projects, etc. Sold in a package of 24.