I received the ” Gator” with chew guard technology from Hear Doggy. This particular toy is from the “Flats” Line with chew Guard technology. http://www.hear-doggy.com/products/flats-with-chew-guard
Hear Doggy! toys give your pet the same sensation and enjoyment of traditional squeaky toys without the irritating noise!
The science behind Hear Doggy!: Dogs can hear sounds at a higher frequency (0 to 45KHz) than humans (0 to 20 KHz). Tuned to an ultrasonic range in the 24-28 KHz frequency, each Hear Doggy! squeaker is out of human hearing range, but still fun for your four-legged friend.
These sturdy characters are made with Chew Guard Technology™ a manufacturing process that adds a tough, durable liner to every toy. The reinforced seams and specially engineered lining were made to withstand the rigors of a dog’s play. Dogs are tough but Chew Guard™ is tougher! http://www.hear-doggy.com/products/flats-with-chew-guard
Hear Doggy is part of Worldwise, this company makes eco friendly products for cats and dog. http://www.worldwise.com/
Their philosophy is :
Worldwise brands create smart
new ways to satisfy your pet’s most important needs.
Our innovative products marry solution-based designs with fresh style and incorporate environmentally responsible materials and processes wherever possible.