We have been exploring in the direction of making full use of raw materials. After using the "perfect part" of defective raw materials to make iPhone case products, we try to further develop practical daily necessities using small sizes and leftover materials. Based on an independently developed manufacturing process, we present an ultra-durable Key Ring. The patterns on these key rings will not fade or fade due to long-term use and friction. Still maintain handmade, non-assembly line mass production.