Spark Ignition Prostaat Stimulator Carbon Fiber P1 Colour:Black The massage oil is easy Mate:Large The massage oil is easy to spread and can be licked and kissed There's a good chance you already knew this The Spark is made of body safe silicone and carbon fiber for a luxurious look The vibrating bullet runs on 1 AAA battery (not included) and is removable so you can also use it separately