Herm Sprenger - 3mm Training Prong Collar w/ ClicLock, Assembly Chain & Swivel

This 3.0mm Short Version training collar is the perfect option for those who love Herm Sprenger's 2.25mm wire gauge but need something better suited for dogs over 40lbs!

The wire gauge is unique in that the physical size of the prong is the same as the 2.25mm prongs, but has the increased strength of a 3mm wire gauge.