SPIKE Ferrofluid authentic Magnetic Display in Black, Pressure release toy

Product Name: SPIKE Ferrofluid authentic Magnetic Display in Black, Pressure release toy
SPIKE Ferrofluid Magnetic Display is a mesmerizing interactive kinetic sculpture containing a paramagnetic liquid called ferrofluid. It was originally created by NASA as a prototype rocket fuel, unique in that it could be fed into the rocket engines using magnets in zero gravity. It becomes highly magnetized in the presence of a magnetic field and forms large spikes and other organic shapes. -Recommended for ages 16+ due to glass construction and strong magnets. -Chemicals are non-toxic -Materials: Anodized aluminum, glass, stainless steel, nickel and brushed aluminum -Dimensions: 2.5" x 2.5" x 4.5" -Contains authentic 7ml of high quality ferrofluid manufactured by Ferrotec -Includes very powerful N52 rare earth handheld magnet for interaction -Available with bright metallic ferrofluid inside!.