Herm Sprenger Rottweiler Pinch Collar Chrome Plated with Swivel and Small Quick Release Snap Hook - 50106 (02) 1/8 inch (3.25 mm) - Size 23 inch (58 cm) Corrosion resistance Prongs evenly arranged around the collar Swivel for leash attachment Consists only of welded parts Fits Rottweiler well