Product size: 2*1.8cm Packing: 3pcs octopus toy with random color. Use: Please use a thicker plastic bottle of soda, wash it and fill it with water, put the jellyfish into the bottle (note that the jellyfish must not be exposed). Tighten the bottle cap. Pinch the soda bottle hard, the jellyfish will sink, relax the jellyfish will float, continuously squeeze and release the jellyfish will rotate (dance), after skilled operation, you can control the jellyfish at will, static in the water / static rotation in the water, floating, sinking, rotating sinking, floating...etc Environmental protection: The jellyfish can be used repeatedly. If you find that the jellyfish has no buoyancy when submerged in the water, you can fish out one of the two small air holes on both sides of the jellyfish head and blow hard to blow out the water stored in the jellyfish head. , the jellyfish came back to life. Preservation: After use, pay attention to take out the jellyfish and dry it, so that it is convenient to play again next time. It is not advisable to soak it in the bottle for a long time