["Description:\nbrand new and high quality\nFeatures:\nMagical Toy - Utterly addictive. It will melt your brain with its awesomeness.\nNovelty - Ferrofluid in a bottle, is the astonishing liquid, which can lead you to a for carefree world.\nMany shapes - You may also enjoy the fun and fascinating moments of playing.\nStress Relief - It's an advanced toy, to help stress relief for adults in the fast-tempo society.\nScience Kit - It's a good gift for teens to do some science experiments, fun but not boring as normal experiments.\nPerfect Gift - The best relaxing educational toy for all ages. Your best adorable gift choice.\n\nSpecification:\nMaterial: Glass, plastic, ferrofluid\nColor: Red,White,Blue,Green,Black,Yellow\nSize:app. 12 x 3cm / 4.72 x 1.18in\nQuantity: 1 set\n\nNote:\nTransition: 1cm=10mm=0.39inch\nWith retail package.\nPlease allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Ferrofluid bottle\n2 x Magnets(other accessories demo in the picture is not included.)"]