HOUSWEETY Key Rings Chain Swivel Lobster Clasps Silver Tone 4.1cm x 3.0cm 20PCs Zize: 4.1cm x3cm(1 5/8" x1 1/8");Thickness:6.1mm( 2/8"); Main Materail: Alloy(Lead and Nickel Safe);Main Color: Silver Tone; Package Included: 20PCs; Environmental protection,beautiful appearance,light weight,convenient installation.Beware of swallowing by children. Various styles of Keyring with different material and different size. Welcome to check our store for more options.Discount is avaliable for big order.