The Herm. Sprenger Ultra-Plus Prong Training Collar with Latch features a unique, quick release snap that can be operated using only one hand. This training collar is safe, practical and easy to use. The patented center plate construction and symmetrical prong placement provide natural contact for optimal communication. Sophisticated production techniques, consistent quality control, superb craftsmanship and the highest quality raw materials make Herm. Sprenger German chain products superior.