Dimensions: 5 * 9 * 2.7cm About magnetic fluid， how much do you know about it?- A magnetic fluid having a diameter of nanoscale magnetic solid particles (10 nm) or so，the base carrier liquid and surfactant mixture of a stable colloidal liquid，when there is no static magnetic attraction，- When the external magnetic field， can exhibit very interesting magnetic characteristics. Product Description:1 A magic little monster， he can make you worry gone， no pressure2 Allows you to play with the feelings of self-love fun product，so you put it down3 You can control the speed of movement of the magnet，the magnetic size， such as a combination of multiple magnetsturned it drip， clumps， prick， little feet， or even make it dance.4 Use your imagination to make it big magic it! ! ! Features: * Complete Seal * Long life * High Reliability * From pollution * High-speed performance * Optimal torque output * No leakage recession * Smooth operation Note:1 Do not open the bottle， fragile， handle with care， not upside down.2 When not in use， do not adsorb long magnet magnetic fluid displaybottles.3 The bottom adhesion sporadic magnetic fluid is normal， showingthe bottle before using shake. Package includes:1 x MHD2 x Magnet