Sea Dog Elf - Cartesian Diver (Color Random)

The science toys for adults are full of ingenuity~ Through the demonstration of Archimedes' principle and the ideal gas law, it transforms into a fun classic game! https://cdn1-next.cybassets.com/s/files/5993/ckeditor/pictures/content_8000009d-bad0-4544-a1a3-e02caa081304.gif Whether rising, falling, or doing fancy spins, the Sea Dog Elves can do it with ease! https://cdn1-next.cybassets.com/s/files/5993/ckeditor/pictures/content_b88943c6-2a2f-44d3-9c41-cf1fd2c0c8a5.gif Once you've mastered the operation, you can form teams with your friends or family for a competition. Race to see who can control the Sea Dog Elves best, perhaps with music or commands. Let the games begin! https://cdn1-next.cybassets.com/s/files/5993/ckeditor/pictures/content_d55ab5ed-53f6-4f4b-8ef8-695884f63af0.jpg 【Scientific Principle】 When you forcefully squeeze the plastic bottle containing the Cartesian diver, the water pressure inside increases, causing the volume of air within the diver to decrease. This reduction in air volume lowers the buoyant force exerted by the water on the diver. When the diver's weight exceeds the buoyant force, it begins to sink. When you release the bottle, the water pressure decreases, the air volume expands, increasing the buoyant force, and the diver floats back up. (Source: Wikipedia) https://cdn1-next.cybassets.com/s/files/5993/ckeditor/pictures/content_bd6be635-5ddb-414a-9b84-2a1bba1d6ac8.jpg When the Sea Dog Elf sinks to the bottom and stops floating, remove it from the bottle. You'll notice two small holes on its body. Blow air into one hole (making sure not to block the other), and water will be expelled from the other. https://cdn1-next.cybassets.com/s/files/5993/ckeditor/pictures/content_46988f9f-db4e-43e2-b9b4-bc570955a09b.jpg https://cdn1-next.cybassets.com/s/files/5993/ckeditor/pictures/content_cd6855e1-cd6d-4332-a227-6246c0896e54.jpg Product Specifications: ► Dimensions: φ1.8 x 3.8 cm ► Material: Plastic ► Origin: Mainland China ► Contents: Sea Dog Elf * 1 (Clear bottle not included) Notes: ► Contains small parts, please be careful of children swallowing them. ► This product is suitable for children aged 5 and above. ► Colors are shipped randomly.