Multi-Functional dog toy as well as Canine Safety Device that fits bully sticks and hard treat sticks from 1/2" to just under 3/4" wide. For dogs up to 70 lbs. Made with non toxic chew resistant durable natural rubber designed for dogs that like to chew (supervise aggressive chewing dogs). AS SEEN ON GOOD DAY Please reference instructional video on how to best use the Bully Grip at: https://www.youtube.com/watch?v=iP5KMstDY1I Helps prevent choking and stomach blockage in dogs when eating treat sticks. Quality Inspected, Assembled and Packaged in the USA. Globally sourced material. INSTRUCTIONS: Twist the Bully Grip into the thickest part of the treat stick by gripping the bully grip in one had and the treat stick in the other. Twist until the treat stick is completely in the bully grip, preferably on the thickest piece of the treat stick.