Blue Colored Ferrofluid in a Bottle Display

Inspired Designs Blue Colored Ferrofluid in a Bottle Display - Magnetic Ferrofluid Decorative Magnet - Science Kit - 1 Count - Glass Bottle

CMS MAGNETICS - (2oz Kit) Ferrofluid Science Experiment Kit for Education in Magnetism - Includes: 2 Fluid Ounce (59mL) Bottle of Ferrofluid, Gloves, Pipette, Petri Dishes

SPACECARE Magnetic Sand Iron Filings Iron Powder Filings Magnetic Power for Magnet Education and School Projects, Storage (12 Ounces) with Shaker Lid, 1 Pack Iron Oxide Powder Shavings for Science