Pretty Smart titanium earrings are designed specifically for people with metal allergies and sensitive ears. Pure titanium hooks are: Skin safe - pure unalloyed titanium is biocompatible and does not react with the human body Lightweight designs - will not feel heavy, pull on or stretch your earlobe Water resistant - will not rust, tarnish, change color or turn your skin green Affordable comfort - a comfortable option that does not sacrifice comfort for style Comfortable, lightweight and hypoallergenic, stainless steel dainty open circle dangle earrings on titanium hooks for sensitive ears.