Latex vibrating dong with balls and variable speed vibrations with Up and Down piston like action. The up and down action on this dong is so powerful that it moves even if you try to hold it from extending with your hands. 7 inches long and 5 inches in circumference. The length is 5.5 inches from above the balls and the up and down motion moves about 1/2 inch. (requires 4C batteries)<i>Product does not contain small white circle base that is shown in the picture.</i>