American Greetings Nickelodeon, Paw Patrol Whistles, 12-Count 12 assorted whistles Whistles come in red, yellow, blue and green colors Hole on the back for converting into a necklace (string not included) PAW Patrol whistles come in red, blue, green and yellow designs with characters Marshall, Chase, Rocky and Rubbleadds fun to birthday supplies! Perfect American Greetings party supplies for a kid's birthday party or Paw Patrol themed party