Poly-coated nylon that is water and odor resistant 18-inch Collar: Fits neck sizes from 11" to 18" 21-inch Collar: Fits neck sizes from 14" to 21" Durable and Comfortable: Built to withstand wear while remaining flexible for everyday comfort. D Ring Style; Nickel plated fittings Reflective Center Strip: Enhances visibility during early morning or nighttime walks. Enhance your dog’s safety and style with the Outdoor Dog Supply 1" Premium Reflective Waterproof D-Ring Dog Collar, crafted from durable, odor-resistant Glow Tuff poly-coated nylon. Featuring a reflective strip for high visibility in low-light conditions and a heavy-duty nickel-plated D-ring for secure leash attachment, this collar is ideal for nighttime walks, training, or outdoor adventures with medium and large breeds. Keep your dog safe and stylish—order your custom reflective D-ring dog collar today! Key Features: Material: Glow Tuff poly-coated nylon, waterproof and odor-resistant, soft, flexible, and easy to clean (wipe with a damp cloth or sponge) for lasting performance. Reflective Strip: High-visibility reflective strip ensures safety during nighttime or low-light conditions, perfect for evening walks or hunting. Hardware: Heavy-duty nickel-plated D-ring positioned near the buckle for secure leash attachment, built for rugged use (not intended for saltwater or chlorine exposure). Fit: Tight hole spacing ensures a precise, adjustable fit, perfect for active dogs in any environment. Durability: Proudly made in the USA with premium craftsmanship, engineered to withstand tough conditions and strong pullers. Sizes: 18 inch: Fits neck sizes 11” to 18” 21 inch: Fits neck sizes 14” to 21" Measurement: From the center of the buckle to the last hole. Customizable Nametag Material: 3/4” brass, rust-resistant with embossed, raised lettering for long-term visibility and identification. Customization: Up to 4 lines, 18 characters per line for personalized dog identification, perfect for safety and style. Allowed Characters: Letters: A–Z (uppercase only) Numbers: 0–9 Special characters: – , . / ' & @ $ ( ) : " + Suitable Breeds: Medium Dog Breeds (Avg. Neck Sizes 12”–18”): Beagle: 12”–16” Border Collie: 12”–18” French Bulldog: 12”–18” Jack Russell Terrier: 12”–16” Shiba Inu: 13”–16” Basset Hound: 14”–18” Pug: 12”–16” Miniature Schnauzer: 12”–17” Large Dog Breeds (Avg. Neck Sizes 16”–24”): Golden Retriever: 18”–24” Labrador Retriever: 18”–24” Boxer: 16”–22” German Shepherd: 18”–24” Dalmatian: 18”–22” Bulldog (English): 18”–24” Australian Shepherd: 16”–22” Standard Poodle: 16”–22” Bernese Mountain Dog: 20”–26”