Clip-on Earring Features: Closure Type: Rotating Invisible Resin Ideal for: Thick/Large Ears, Sensitive Ears, Small/Thin Ears Average Comfortable Wear Duration: 8-12 hours Ability to adjust: No Please note, item is only one pair. Materials Silver tone copper alloy Dimensions Height: 2 mm Width: 2.2mm Weight: 3.2g per pair