Herm Sprenger Prong Collar Size:3.0 - Do not use without trainer approval Benefits of Day Training:

Benefits of Day Training:

All BNTs live in the home with the trainer while we work towards our goals

Reactive and aggressive dogs have a $50/day upcharge as they require more time than a standard Day Train

We do not recommend using this without trainer's supervision

Color choices are available

Herm Sprenger Prong Collar Size:3.0 - Do not use without trainer approval Benefits of Day Training:We do not recommend using this without trainer's supervision. If you are thinking about purchasing one, please also consider one of our training programs. Herm Sprenger Ultra Plus Prong Dog Training Collar Steel Chrome Plated Dog Prong Collar 2. 25mm 12" 3. 0mm 16" 3. 2mm 18" 4. 0mm 20"