Martingale Dog Collar, Dog Anti Pull Chain Collar, Metal Pet Collar for Dogs Training Walking, Heavy Duty 2-Piece, Fits Neck Sizes 18.9-21.7in

2-Piece Set & Clear Neck Fit:This set includes 2 identical martingale collars, each designed to fit dogs with neck sizes 18.9-21.7in (48-55cm) - suitable for large breeds (e.g., Labradors, German Shepherds) and larger medium breeds (e.g., Border Collies). Each collar has a 2.5mm chain diameter and weighs 5.3oz (150g), balancing sturdiness and wearing comfort. Smooth Metal Craft for Gentle Wear:Made from iron with chrome plating, each collar undergoes mirror polishing and arc grinding to eliminate rough edges - reducing friction against a dog’s neck skin during movement. The chrome finish helps minimize surface tarnishing with regular use. Anti-Pull for Active Use:The double-chain structure provides gentle control during walks or training, suitable for energetic dogs that tend to pull. It offers more stability than standard collars without restricting normal movement, supporting daily outdoor activities. Secure Adjustable Fit:The martingale structure tightens slightly under tension to prevent slipping, while the adjustable design keeps the collar within the 18.9-21.7in (48-55cm) neck range. It stays in place during runs or play without causing discomfort from over-tightening. Year-Round Practical Use:Built to handle daily walks, training, and light outdoor adventures in dry or light rain conditions. The metal chain resists bending with regular use, and the chrome plating maintains its appearance with basic cleaning - a practical choice for busy dog owners.