Dog Collar Strong Steel Dog Choke Collar Dog Training Collar with Size: (2.5mm * 50cm) about 20-40kg Specification: Two pieces The metal chain is made of high quality metal. The choke coil is chrome plated and has a long service life. The chain surface is very smooth to avoid harming animals. Durable and durable The chain adopts argon welding and chrome plating process for maximum strength and durability. Due to its chain structure, this necklace is more durable and very resistant to bite. The chrome coating makes the collar waterproof and anti-rust. Warning, please do not leave the collar in water or rain for a long time, please wipe it with a dry cloth as soon as possible after been wet. Very suitable for training Good design for training and other daily activities. The ring is welded seamless and flexible. It is very suitable for smooth control, forcing your pet to obey or walk.