The 4.0 mm Boss Buckle from Katie’s Buckles is a durable, functional upgrade designed specifically for select Herm Sprenger prong collars. This buckle replaces the center dividing plate on collars that utilize opposite-facing links. Two lin...
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Love this buckle, this is our second o e, we bought one a few years ago and it broke. It makes using his prong collar do easy. Would recommend it.