Crysta has developed an exclusive technique in crysta's manufacturing processes, it is composed of floating parts incorporated in the soft elastomer that create a completely new and novel experience. adjust the sensations by simply adjusting the strength and grip points. these dynamic floating balls will make you enjoy pleasure in motion with little effort. it is reusable, easy to clean and easy to use. how to use:1- if using it for the first time remove the plastic predector that covers it.2- remove the upper insertion cap facing 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 it to the desired position. after inserting the product, adjust the grip and force to enjoy the dynamic sensations of the floating balls.4- after use, wash the product and rinse it. after use, wash it carefully with water. (this product does not allow you to remove all the inner part out, do not try, you may damage the product).5- finally place the clean and dry item in the case, in a ventilated area to finish drying. when it is 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.