Hypoallergenic Jewelry Materials: Crafted from safest implant grade G23 titanium, and inlaid with AAAAA+ cubic zirconia(6mm), hypoallergenic implant grade titanium earrings backs are also adorned with colored CZ and aslo can be interchanged. Titanium earring is not easy to allergy as stainless steel, more suitable for multiple piercing sensitive skin. Rainbow Cubic zirconia earrings studs are nickel-free, brilliant fire and feature a high polished smooth surface for comfortable wear. 2 Set of Titanium Earrings: Each order comes with sets of titanium flat back earrings in 2 colors (black and rainbow), allowing for interchangeable wear to suit personal preferences. These unisex stud earrings are designed to fit both women and men, with a screw back post size of 6mm, a gauge of 20g/0.8mm, and a weight of 1.6g/pair. Convenient Titanium Screw Back: Not easy to loosen or fall off and screw back mechanism allows for easy wearing and removal. The screw back design ensures a safe secure fit and stay in place, suitable for daily wear or sleep. Medical grade titanium earrings can be worn for extended periods by those with sensitive ears, even suitable for activities like swimming or showering without needing to be removed, eliminating the hassle of having to change earrings when going out for travel. Ideal Gift Choice: Packaged in a gray velvet cloth jewelry bag, ready for gifting anytime. Versatile black earrings for men and women are a perfect accessory for any outfit. Fashion and shinning stud earrings can complement your style effortlessly, perfect for various occasions such as weddings, engagements, anniversaries, graduations, parties, prom, and more. Women's stud earrings also serve as ideal gifts for yourself and friends during Easter, Valentine's Day, Mother's Day, and Christmas. Excellent Customer Service: SmileBelle promises high-quality mens black earrings, offers a 90-day money-back guarantee, and provides round-the-clock customer support for a satisfactory shopping experience.