Birdsbesafe Cat Collar Cover Birdsbesafe cat collar cover warns birds of cat's presence. (Use your own cat collar or purchase separately/not included) Brightly colored collar cover is easily visible to birds whose eyes see bright colors especially well Collar cover is a tube of fabric and is patented in U.S. Safe for cat when used with breakaway collar. Comfortable for cat, and it can be worn 24/7. All cotton exclusive of trim. Collar cover has reflective trim that makes cat more visible to cars at night