I haven't used this much and have been storing it. ◎ Product Description Length 40mm * Width 15mm Key ring diameter 25mm / Weight 8g Titanium Characteristics Safe, healthy, allergy-free, lightweight and durable titanium! Titanium is a relatively new material to be put into practical use among non-ferrous metals, and it is one of the materials that has been rapidly expanding in use in recent years. The biggest advantage that characterizes titanium is, above all, its lightness and strength, that is, its "high specific strength." Specific strength is an indicator that shows the tensile strength per density, and the larger the value, the higher the strength despite its lightness. It is one of the top classes among non-ferrous metals. Titanium is a very safe metal, used in medical instruments. Those with metal allergies can wear it with peace of mind. Titanium has no unpleasant metallic odor and is highly corrosion-resistant, so you don't have to worry about itching even in the sweaty season, and you can wear it comfortably 365 days a year. It can be widely used for carabiners, hooks, key rings, etc., and is stylish and practical. It is ideal for everyday use, outdoor backpacks, camping, hiking, cycling, fishing, etc. This product is for hanging accessories, etc. It cannot be used for climbing or mountaineering where loads are applied. This is a used item, so there may be scratches and stains due to use and storage. Please consider this before purchasing. Please refrain from purchasing if you are very sensitive. Shipping will be 4-7 days, but it will basically be shipped on Sunday mornings, so if you purchase by 6:00 am on Sunday, it will be shipped on Sunday morning, and if you purchase after 6:00 am, it will be shipped the following Sunday. If you have any questions, feel free to comment ^_^ We are also selling many other products! Please take a look at my profile m(_ _)m We will offer a discount for bulk purchases, so please feel free to contact us ^_^