Italian leather Buffalo leather Combination tanning of tannin and chrome Leather thickness: 1.2 mm Smart key case Please use it by passing keys through as shown in the photo example. Length from the top: 9 cm Width: 5 cm Depth: 1.5 cm Please understand that there may be scratches and color unevenness due to the natural leather. Each stitch is carefully hand-sewn, but as it was made by an amateur, there may be some slight distortions.