Amazing product! LEDs are okay better to remove suction cup and just place on to tho.
I love these things and I've bought them for several people but the gold one looks different than the blue because the gold powder floats in the liquid rather than staying in the ferrofluid. Also, there is an air bubble in the gold one and the magnet it came with is chipped. Otherwise it is great.
I purchased the gold spike unit with led and extra magnet, set it up on a shelf, what a display. All my friends notice it and ask, I just tell the to grab a magnet, and the way I have them set up(super glued small squares of thin steel about 1" from the spike on both sides to hold the powerful magnets) when they grab it the fluid instantly jiggles, then the fun starts. Gotta say they're pretty cool, just make sure that you are cautious of scratching the glass as it doesn't take much with the metal side. .........