Chuzhao Wu Silvery 2.2" Tone Lobster Swivel Clasps Hook With 1" Key Ring Key Chain (Pack Of 8) Lobster Clasp Length:2.2", key ring Diameter:0.1". Material: Zinc Metal Alloy+Alloy(Cadmium Safe)? Lobster claw snap hook with spring-loaded automatic gate ? Full 360 degree swivel eye helps prevent tangles? burly swivel clasps are great for large chain designs, purses, back packs, designer dog leads, color?