The fun of Ferrofluid in a mess-free, sealed display bottle! Tough, impact resistant glass offers easy viewing and interaction with Ferrofluid. The 4 included magnets give maximum control of the magnetic liquid, multiple magnetic "flower spikes" and controlled movement between multiple Ferrofluid droplets.
Each glass bottle contains 2 ounces suspension solution (mostly water, plus some secret ingredients) and a glob of Ferrofluid.
Includes (4) super-strong rare earth magnets - 2 Jumbo Pins and 2 Discs + Storage Case