Born from customer feedback, based on the concept of the "ideal Kihei necklace." We've improved the clasp, which was the biggest issue with the bold chain, as the existing ones were too cheap-looking and lacked durability. We've upgraded the clasp to a special "insert buckle type" that offers a luxurious feel, easy one-touch operation, and excellent durability. Furthermore, we focused on "wearability" by applying "curved cuts," eliminating all "sharp edges" on the chain and clasp, resulting in a very comfortable feel and a beautiful luster, providing the ideal wearing experience.