Feel Flux - Spin Flux in Anodized Black Science Toy Gift for AdultsBased on the same principle as Feel Flux, Spin Flux delivers a unique tactile and visual experience. It's designed to deliver a smooth and relaxing sensation based on advanced physics. When you start to rotate the ball, the powerful magnet embedded inside the aluminum torus generates an electric current that counteracts the movement and tries to slow down the rotation. However, this effect only occurs when the ball is rotated in a way that alters its