There is no doubt that the life span of the collar is almost endless, as it is crafted of stainless steel. It will not corrode or break, and its unusual black color will not be spoiled with the rusty spots. Stainless steel is the best material for the manufacturing of the dog training equipment, as aside from resistance to rust it features incredible strength and durability. Besides, it is a production of a worldwide famous company the Herm Sprenger, thus, it is a premium quality tool that will surely not let you down even in the most unexpected situation. The long links of the collar are smooth and polished to protect the dog's fur from any kind of damaging so that your pet will always look irresistible.