Petface Seriously Strong Rubber Extreme Tugger. The Petface Seriously Strong Rubber Extreme Tugger is a heavy duty toy for your dog. The Petface Seriously Strong Rope Log will give your dog hours of fun, helping to keep him fit and healthy. *Pets should be supervised when playing with toys. Although designed to take a chewing, the Petface Seriously Strong collection is not completely indestructible and will be susceptible to chew damage. The life of a Petface Seriously Strong toy entirely depends on the ability and strength of your pet. Monitor for wear and replace if damaged*