Coastal Pet Herm. Sprenger Ultra-Plus Stainless Dog Prong Training Collar 4.0mm 25"

Herm Sprenger - Stainless Steel Ultra-Plus Prong Dog Training Collar - Black - 4 mm x 20" Neck Size; 25" Chain Length

Herm Sprenger ClicLock Fastener Stainless Steel Buckle for Prong Dog Training Collar & Quick Release with Easy Buckle for Small Medium Large Dogs (2.25mm)

JIPIMON Dog Collar Extra Links Designed for Training Collars (4 Pack) Steel Chrome Plated Dog Training Collar Links (2.25mm, Silver)