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 Stainless Steel Ultra-Plus Prong Dog Collar with Swivel D-Ring, 3 Extra Links, 30 Comfort Tips for Small Medium Large Dogs Professional Training Collar Made in Germany (Small-Medium) :