HERM SPRENGER ORIGINAL PINCH COLLAR LINK - CHROME PLATED STEEL - THIS LINK WILL FIT 25" BY 3.9MM PINCH COLLAR WITH EASY SNAP - EASY ON AND OFF - To adjust size, add or remove individual links. - Herm Sprenger Original - Made In GERMANY - Will fit 25" by 3.9mm Pinch Collar - Life Time Warranty!!!