[20 inch |  2.5mm]

[24 inch |  3.5mm]

DOG CHAIN COLLAR recommended for professional training
CHOKER COLLAR, Measure dogs neck and add 2 inches for initial collar length for Adjustment
MARTINGALE COLLAR, the heavy chain collar is made of Copper for maximum strength and durability
TRAINING COLLAR, Training your dog is easy with our chain training collar
SLIP COLLAR, NO tarnish, rust, or break,dog training choke/collar is excellent for gentle control, great for Pit Bull German Shepherd Staffordshire Terrier Training Metal Gear Prong Pets Collar