Black Ferrofluid Magnetic Bottle Decompression Toys Creative gift by DDStore Description: The magnetic liquid is transparent and it is a very creative toys that unpredictably change the shape of the magnetic fluid. It can also kill time, decompression, development intelligence. Each bottle colors for your choice. Feature: Material:glass Package size:3 * 3 * 10 cm Packaged Included: 1x Magnetic Liquid Display bottle 2x magnet 2x magnetic plastic handle