Crysta has developed an exclusive technique in crysta's manufacturing processes, it is composed of enveloping floating cubes incorporated in the soft elastomer that create a completely new and novel experience, which provide pleasure when colliding. adjust the sensations by simply adjusting the force and grip points.these dynamic floating balls will make you enjoy pleasure in motion with little effort. it is reusable, easy to clean and use.directions for use:1- if using for the first time, remove the plastic predector that covers it.2- remove the upper insertion cap by looking at the insertion. remove the upper insertion cap facing upwards, lubricate the inside and the insertion point of the product to prepare it for use.3- after inserting the product adjust the grip and force to enjoy the dynamic sensations of the floating balls.4- after using it, wash it, rinse it with water. after use, wash it carefully with water. (this product does not allow you to remove all the inside out, do not attempt to do so, it may damage the product).5- finally place the clean and dry item in the case, in a ventilated area to finish drying. when completely dry (make sure it is not wet) put the top cover back on and store it in a cool, dry place away from the sun.