Tested to withstand over 50kg of pulling force, this leash has a custom made clip that is easy to clip on and off on any collar or chest strap. We've also lined the inside and handle with plenty of padding and neoprene, the same material used in wetsuits - it's soft, quick drying and odorless. We strive to create a comfortable walking experience, so we have lined this handle with a soft neoprene material. It also prevents chafing burns that can be caused by other brands of leashes.