Large Dog Choke Collar and Trainer. This Giant 24" Metal Chain Dog Collar Will Help Assist in Your Behavioral Training Efforts. Designed for Large Breed Dogs. Collar Has 2 Metal End Circles for Dog Tags and Easy On/off Attachment of a Leash. CONSTRUCTION: Well Constructed Collar in a Twisted Link Chain Design OVERSIZE: Extra Large 24" Metal Chain Collar LOOK & FEEL: Impressive Look and Feel Design QUALITY: Rust-Proof and Tarnish-free Metal PRICE: Cost Effective and Priced Right