The 10mm long stainless steel contact points are suitable for electronic anti-bark collars (d-mute series) and GPS collars. The 10mm length is suitable for short-haired dog breeds.
The stainless steel contact points, 17 mm long (extended) are suitable for electronic anti-bark collars (d-mute series) and for GPS collars. The 17mm length is suitable for dog breeds with longer hair.
The package contains 2 pieces.