I am interested in a cat toy that is large enough that it will not go under our couch. The sad look on our kittens face just tears me up... and I have to bend down to get the toy back. =)Printed at 5 percent with a custom piece of rafting. It just is a small cylinder that allows the ball to print without coming off the plate.Once printed, I bust the ball off on the inside with my finger. Too lazy to take a ruler upstairs with me, so this is the 4th time I guesstimated the correct size of a non-lose able ball... I am up to 6cm in diameter. =)