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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
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Amazon.com : Herm Sprenger Curogan Prong Dog Training Collar Ultra-Plus Pet Pinch Collar Hypoallergenic Nickel Free No-Pull Collar for Dogs Made in Germany 2.25mm x 16in Small : Pet Supplies
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