Ruff Dawg – a division of Jefferson Rubber Works ,is a family owned rubber molding company in Worcester MA, founded in 1975. Back in 1995, Jefferson Rubber Works was making a 9 inch diameter rubber disc used for water aeration at wastewater treatment plants. They decided to try it out as a toy for dogs and the K9-Flyer was born. It debuted at the Chicago pet industry trade show, and was such a big hit it sold out – and people were clamoring for even more toys! Since then, Ruff Dawg has developed a full line of durable rubber toys, including a line of Lifetime Guaranteed toys for dogs of all sizes!