Tuff Disk is a bite resistant flying disc designed for superior flight. It's perfect for the backyard, dog park, or beach. The aerodynamic design makes it easy to toss far, so you can really exercise your dog. Comes in three assorted colors: blue, green, and red. Durable puncture-resistant polyethelene material is recyclable. Molding PE requires lower temperatures and produces lower emissions than similar polypropylene materials. Smooth double-thick rim is rounded to be softer on gums, more durable, and to add perimeter weighting for longer straighter flight.