This promotional offer applies only to the listed variants starting with 439964xx xx variant identifier this willow ball from jr farm has a delicious secret once your pet has chewed through the willow it will discover the sweet smelling meadow hay the untreated willow is non toxic and safe for your pet and its a great toy for your pet to roll and push round the cage diameter approx 15cm please note as with any other product please supervise your pet with this toy check the prod