Handmade keyholder made with domestic, red oil-tanned leather (single piece of cowhide). We've obtained soft, supple, and high-quality leather. This is oil-tanned leather, also known as "oil nume," which is rich in oil and relatively water-resistant. The color is a unique, deep red, making it a very attractive leather. Limited quantity available. After numerous prototypes, we refined the size and design down to the millimeter, pursuing a minimalist and simple aesthetic. Something you don't often see. Simple yet impactful. That's the concept behind this product. Perfect for small keys like bicycle keys, motorcycle keys, locker keys, and desk keys. Of course, it can also be used for car keys. We've also paid attention to the size of the key ring, using the smallest possible ring, assuming it will hold a single key. The leather develops character with use, but due to the natural nature of the "nume" leather, there may be wrinkles (known as "tiger marks") and minor scratches. While popular in Europe and America, more and more people in Japan are appreciating these as unique characteristics. 【Size】 Length: Approximately 5.5cm Thickness: 1.2cm Ring Size: Outer diameter 1.5cm Will be packaged in a new envelope. Perfect for gifts. This is a handmade product. Please refrain from purchasing if you are looking for the quality of a mass-produced product or are overly concerned with minor imperfections. While the dimensions and materials are the same, the product may differ slightly from the photos. Please understand this beforehand. Will be shipped promptly via regular mail.