This is a set of 10 keychains made from cut-off pieces of vegetable-tanned leather. Thickness: 2.4-2.6mm Includes 10 pieces, rings, and rivets (fasteners). Cut edges are raw and not polished. Tools and the sample cat keychain are not included. This is natural vegetable-tanned leather, so stamping and dyeing are possible. You can also enjoy the aging process of the leather as it changes to an amber color over time. These are scraps from the edges of natural leather. Thickness and hardness are not uniform. There may be discoloration, warping, and scratches, and each piece has a unique appearance. Please understand this before purchasing. A set of 20 is also available for 2250 yen. Please comment if you have any questions.