These "Off-Time Earrings" feature 8mm natural jet beads set on pure titanium findings. Wear them while you sleep, and wake up with clean pierced ears! ● Of course, you can use them as jewelry, just like other jewelry earrings. No worries about metal allergies! Keeps your pierced ears clean! Set with findings that have an oxidation film treatment to keep your pierced ears clean. ◇ Are your pierced ears clean? ◇ Earrings are an important part of fashion, but surprisingly, people tend to be inattentive to their pierced ears. Small pierced holes are prone to the breeding of bacteria due to sweat and dirt from the skin. That bacteria can also be the source of unpleasant odors. Off-Time Earrings are earrings specifically designed for pierced ears, made of 100% titanium and treated with a special process (forming an oxidation film on the surface with photocatalytic antibacterial action) that breaks down bacteria and dirt. Simply wear them on your days off or before bed, and they will keep your pierced ears clean. ※ By "anodizing" the surface of pure titanium with electricity and chemicals, a stable, glass-like film "anodic oxide film (TiO2)" is created on the surface. This oxide film has three special effects. 1. When exposed to ultraviolet light (sunlight, fluorescent light), it uses that energy as a catalyst (a factor that causes a reaction) to decompose surrounding water, generating oxygen and other substances with antibacterial properties, exhibiting high antibacterial and sterilizing power. 2. Because the oxide film is very stable, it does not ionize even when it comes into contact with the skin. Therefore, it does not cause metal allergies like other metals. 3. The titanium oxide generated on the surface of pure titanium has a hexagonal, transparent columnar shape. These crystals reflect visible light like a prism. Therefore, by adjusting the thickness of the film in angstrom units, beautiful coloring can be obtained. 【Specifications】 Frame: Made in Japan, pure titanium (oxidation film treatment) Natural Jet: Approximately 8mm Weight: Approximately 1.0g (set weight) Thank you for viewing.