Weigh your pet and choose the correct size for its weight. The KONG Extreme Dog Toy, Medium is suitable for dogs between 7kg - 16kg in weight. It is designed for the toughest of chewers. KONG recommends sizing up if a dog destroys a KONG in a short period of time. The size increases the thickness of the rubber making it harder for a dog to get leverage on the product and therefore making it less prone to destruction.

Cleaning: If using in a dishwasher only use a cool or warm water rinse cycle, no drying cycle, place on the top shelf of the dishwasher only. Regular hand soap or dish soap shouldn't have any effect on the rubber. KONG personally suggests that the toys be washed in the sink using a bottle brush or similar brush to get leftovers out of the inside.