HERM SPRENGER ORIGINAL PINCH COLLAR!!! - CUROGAN - THIS COLLAR IS 25" BY 3.99MM - INCLUDES 10 LINKS - ADJUSTABLE - THIS PRODUCT HAS A LIFE TIME WARRANTY!!! - MADE OF CUROGAN - (Copper-tin-alloy with a high copper portion and some additives which make the material strong) - ORIGINAL HERM SPRENGER PINCH COLLAR - MADE IN GERMANY - BEST QUALITY ON THE MARKET - THIS COLLAR IS 25" BY 3.99MM - LINKS CAN BE ADDED AND REMOVED !!!