Amazon.com : Herm Sprenger Chrome Plated Steel Training Prong Collar with Quick Release Snap for Dogs (23in (58cm) x 3.2mm) : Dog Pressure Collar Quick Release Medium : Pet Supplies
Amazon.com : Herm SPRENGER Ultra-Plus Prong Dog Training Collar, 3.0 mm x 18" Neck Size, 3.0 mm x 20" Chain Length, Steel Chrome Plated Dog Prong Collar, Pinch Collar for Dogs, Dog
Amazon.com : Herm Sprenger Prong Collar for Dog Training with Easy Quick Release Buckle - German Made Dog Collar with Chrome Plated Stainless Steel 4.0mm Prongs for Extra Large Dogs (26-31" Neck) :
Herm Sprenger Stainless Steel Prong Collar with Swivel [50135-010-55 50105-010-55 50145-010-55 Stainless steel prong collar with swivel] : Prong Collars, Pinch Collars, Dog Training Collars, Curogan Collars, Chain Dog Collars, Fur Saver
Medium Chain Link Collar, adjustable – with SPRENGER hook – Stainless steel, 3.0 mm | Herm. Sprenger USA
Chrome Plated Prong Collar with Swivel and Quick Release Snap Hook (2.25 mm x 16 in) Herm Sprenger [HS34#1091 50136-02 (2.25mm) Quick release prong collar with swivel Herm Sprenger] : Prong Collars,
Coastal Pet Products Herm. Sprenger Ultra-Plus Stainless Dog Prong Training Collar 2.25mm 16" Black - Pet Wish Pros
Amazon.com : Herm Sprenger Prong Collar for Dog Training with Easy Quick Release Buckle - German Made Dog Collar with Chrome Plated Stainless Steel 2.25mm Prongs for Small Dogs (13-18" Neck) :