Key holder made from black smooth leather (single piece of cowhide). This is a handmade item. After numerous prototypes, I refined the size and design down to the millimeter, achieving a minimalist and simple aesthetic. It's something you don't often see. Simple yet impactful. That's the concept behind its creation. Perfect for small keys like bicycle keys, motorcycle keys, locker keys, and desk keys. Of course, it also works for car keys. I paid close attention to the key ring size, opting for the smallest possible ring, designed to hold a single key. The leather develops character with use, but being natural leather, it may have wrinkles known as "tiger stripes" and minor imperfections. While favored in the West, more and more people in Japan are appreciating these as unique characteristics. This is not embossed leather or shrunken grain leather. 【Size】 Length: Approximately 5.5cm Thickness: 1.2cm Ring Size: Outer diameter 1.5cm It will be packaged in a new envelope. Perfect for gifts. This is a handmade item. Please refrain from purchasing if you are looking for the quality of a mass-produced product or are overly concerned with minor details. While the dimensions and materials are the same, the product may differ slightly from the photos. Please understand this beforehand. We will ship promptly via regular mail.