[Airtag Holder&QR Code ID tag] All-in-one dog collars doubles your dog's security. The QR code ID tag on the buckle and the daily waterproof and dustproof AirTag holder perfectly fit together with the AirTag so you can find your pet wherever it goes [Reflective strips for Night Safety] Keep your dog safe during night. Reflective strip on the collar increases your dog's visibility at night or in low light, keeping your dog safe [Comfortable Material for Dogs] Collar webbing feature high quality nylon material and soft neoprene padding for long-lasting use and enhanced wearing comfort. Soft, breathable and durable enough to withstand the wear and tear of daily activities, without irritating your dog's neck [Adjustable Size] Adjustable length for all sizes of collars, for fit all kinds of dogs' necks. We also offer four sizes to choose from, please measure the length of your dog's neck before purchasing to choose a proper collar. [QR Code Buckle] ID tag is equivalent to dog ID card, you can scan the code to custom your pet's details and contact info. If your pet is lost, Finder just scan the QR code on dog buckle, basic information of the pet will appear and contact you, meanwhile, we will automatically send you an alert email with location The one-piece dog collar collects AirTag holder and ID tag, providing double security for your pet in daily life, no need to worry about your dog getting lost. What you get: a dog collar, an AirTag holder, an ID tag.