With the middle grip and the twist lock, its further safe.

Two-lined bar-tacking backstitch for preventing tearing - Zigzag-shaped, tightly constructed bar-tacking back stitch is a convenient and durable back stitch used in various safety equipment such as seat belts, helmets, daisy chains, etc.
Stronger and sturdier dual-joint webbing - We have created a stronger and more robust leash by dual backstitching of chamude fabric having an appearance similar to natural leather, a soft texture and excellent durability and the well-woven polyester webbing.
Soft and comfortable fit without being rubbed even by violent control - Have you ever experienced hand-rubbing when you restrained a powerful dog with other companys polyester webbing leash? NPT auto-lock grip leash made of chamude fabric with an excellent texture. You can use without being rubbed thanks to its soft texture.