Amazon.com : Herm SPRENGER Ultra-Plus Prong Dog Training Collar, 2.25 mm x 13" Neck Size, 2.25 mm x 16" Chain Length, Steel Chrome Plated, Pinch Collar/Correction Collar for Dog : Pet Supplies
Herm Sprenger Curogan Pinch Collar with Buckle 2.25 mm - €77.85
Coastal Pet Herm Sprenger Collier pour chien à pression - 18"L x 3.0mm | Walmart Canada
Paracord Covered 2.25mm Prong Collar Black - Etsy Israel