Hender Scheme "glass code" This product uses cowhide leather. It has a moderate thickness and firmness, and becomes softer and more familiar with use, allowing you to enjoy the aging process as it develops a unique luster from the tannin tanning. The part that attaches to glasses or sunglasses is made of elastic rubber, accommodating various frame widths and thicknesses. A simple and stylish item typical of Hender Scheme, suitable for all ages and genders. *This product has cleared Hender Scheme's quality standards and meets domestic inspection standards. Because it utilizes the unique texture of the original leather, there may be slight variations in size and texture from piece to piece, as well as color unevenness, veins, pre-existing scars, and the characteristic smell of leather products. In addition, there may be minor scratches or scuffs that inevitably occur during manufacturing. We introduce these items with the understanding that they are of good quality. Please be aware of this when purchasing, and we hope you will enjoy them as a unique characteristic of leather products. Hender Scheme