1.The strength is soft and continuous,and the spring has a long life;
2.The spring material is made of German carbon steel, high-quality stainless steelwith 0.10-0.165mm thickness and 8-16mm width;
3. Theservicelife canreach50000-100000times,whichis relatedtothe materialand thickness.
German carbon steel material,the standard equipment of the highest-end dog leash,soft.durable and long life; Seldom domesticmanufacturers can supply this product the production process of stainless steel dog leash is mature,stalble, efficient and costeffective.