HERM. SPRENGER is one of the leading manufacturers of dog training products, best-known for their quality, reliability, and safety. All products are made in Germany, utilizing only the finest materials and components. Through their continuous quality control efforts over the past 140 years, HERM. SPRENGER’s training collars are recognized as one of the best training collars sold on the market today. Decades of experience in manufacturing, huge market knowledge and the cooperation of experts dog training professionals, medicine and research provide the basis for product-development that sets international benchmarks.