HERM SPRENGER ORIGINAL PINCH COLLAR!!! - CHROME PLATED STEEL - THIS COLLAR IS 25" BY 3.9MM - INCLUDES 10 LINKS - INCLUDES SMALL SWIVEL & EASY RELEASE SNAP - ADJUSTABLE - THIS PRODUCT HAS A LIFE TIME WARRANTY!!! Pinch Dog Collar by Herm Sprenger, Made in Germany Features an Assembly Chain, Ring, Scissors Snap, and Swivel for greater flexibility on leash 4 millimeter gauge wire, 25 inch circumference, 10 Links Included For dogs up to 150 lbs Chrome Plated Steel