Slip & Martingale Collars by HS Sprenger. Details: The first thing you notice about this collar is how exclusive it looks. This item was made to serve you long and bring comfort for you and your dog. You can use it for daily training sessions when you teach your dog to behave nicely in the public places. Best metal dog collars handcrafted in Germany. German quality and design, in a variety of materials Set Contains: Short link necklace .