Dogs love these Flying Squirrels! They are durable and they fly better than any frisbee. The dog can pick it up off the ground much easier than a frisbee. When it's laying on the ground the concave body allows the dog to scoop it up on the fly. Colors may vary. The squirrel is not designed to be left with a dog unattended but it is sturdy enough to last for years if you use it properly.