WAUDOG Nylon Cat Collars feature the reliable fastex hardware guaranteeing that the collar will be unfastened only when the owner wants it to. The elastic insert makes the collar even safer and the bell scares away birds and mice and allows the parents to find their pets. The WAUDOG Nylon collars are available in 10 vivid and fashionable designs. The innovative printing technology makes the designs incredibly durable. Each collar features the digital QR passport.