Scylla is made to fit over the head of the Hitachi wand or a wand with the same dimensions. It is made from a 10a shore platinum silicone that is soft and bendable but still able to produce a lot of amazing vibrations, as seen in the video in which the wand is at its lowest setting. * Colors may vary slightly from the picture as each toy is handmade, each mold is unique as well and may have a random indentation or raised spot but will not affect the performance or safety of the toy. If you have any concerns please message us! Thanks-Pris.