NDZ Performance Black Dog Tag Kit with 30" Chain & Silencer K9 Unit Text Dog Tag, Silencer & Chain Combo Kit - Anodized Aluminum Tag Use forPets, People, Key Rings, Toolboxs, Department Tags, Security Tags, luggage and more. Permanent image, Laser engraved design on both sides 1000+ of High Quality Permanent Laser engraved images provided by NDZ Performance We stock over 14 different colors!