Keep your dog training system working effectively with these MAISOIE replacement contact points designed specifically for DB400 dog training collars. These durable prongs ensure reliable contact between the collar and your dog's neck for consistent training results. The contact points are precision-engineered to fit securely and maintain the functionality of your training collar. Easy to install, these replacement prongs help extend the life of your training system when the original contact points wear down. Compatible with DB400 model collars, these replacement parts are essential accessories for maintaining your dog training equipment. Whether you're a professional trainer or working with your own pet, having spare contact points on hand helps ensure uninterrupted training sessions.