WauDog Summer Metal Collar 2.5 x 31-49cm with SmartID. We use cutting-edge coloring technology to bring the prints to life. This technology ensures that the colors are vibrant and fade-resistant. The collar from WAUDOG is durable and waterproof. The material stays smooth, flexible, and damage-resistant for a very long time. It is lightweight and can be easily folded. It allows your dog to enjoy complete freedom. The collar is extremely easy to care for – simply rinse it with water. The fabric dries quickly after washing. The WAUDOG collar comes with a free QR tag for your dog's safety.