Fun and ambitious desk deco which offers a nice interactive sciency vibe. I'd give 5 stars had I not purchased the LED light addition. The LED quality is lacking for what should be presented as a technical desk adornment. I'd suggest looking into a high CRI emitter in a neutral tint as to not impact the color and tone of the Ferro fluid; nichia 219b emitters are top of the line and would really make the display pop.