Durably made with high quality nylon, non-corrosive D-ring & a secure side-release buckle.Double-sided reflective stitching increases nighttime visibility to keep your dog safe and secure during evening or early morning walks. Your dog's name and phone number will be stitched into the collar permanently for long lasting identification.When you want to go on a vacation the ID collar is the best choice for your pet.No matter where your dog goes, everyone will know his or her name and how to get in touch with you! 5 collar colors-Blue, Green, Teal, Black, Pink and 10 embroidery thread color options-Orange,White, Black, Navy blue, Pink, blue, Purple, red, Teal,Yellow,Green. For threads it is best to use a contrasting color to the nylon. If you choose a dark Collar Color then go with a light colored thread. If you choose a light collar color then go with a dark thread.