General description The Dog Training Collar is designed for medium and large dogs, particularly those that are very uncontrollable. It features an adjustable choke mechanism, ensuring you maintain control during training sessions. Technical specifications Size: S-3.0mm × 50cm Weight: 105g Material: High-quality steel, chrome plated Resistant Durable chain structure resistant to bites Waterproof and rust-resistant due to chrome layer Note: Avoid prolonged exposure to water; dry with a cloth after wetting Usage Ideal for exercise and daily activities Choke design helps train runaway dogs by providing control when they pull Installation Attach one O-ring to the leash Thread the chain through the remaining O-ring to create a slip knot Wrap the chain around your pet's neck for secure fitting