Love Meter Hand Boiler Thermometer Spiral Glass Educational Toys Science Energy Museum Toy Valentine'S Day Gifts

Features: Made of glass material, sturdy and durable. Boils the liquid with your own body temperature. Cup the lower chamber in your palm and watch how the liquid boils and rises through the tubes into the top chamber. Hand Boilers are looped and twisted glass sculptures containing a liquid that will "boil" as heat is transferred from your bare hand. It is a pretty fascinating science toy and an excellent demonstration of energy transfer. It can also be placed anywhere in the living room as an ornament. Specifications: Material:Glass Color:Blue,purple,red Size:4.7*17cm Package contains:1pc Note: 1. Please note that the photo does not show actual size, please refer to Description for size details. 2. Please allow differences due to manual measurement, thanks. 3. Due to the difference between different monitors, the image may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.