Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Love Birds Color Meter Hand Boiler, 2 Pcs (Purple&

Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Love Birds Color Meter Hand Boiler, 2 Pcs (Purple&

Fascinating Science Experiment – Demonstrates energy transfer as liquid "boils" from body heat, making it an engaging hands-on experiment. Unique Graduation & Valentine's Gift – A fun and thoughtful present for science lovers, graduates, or couples as a symbolic love meter. Elegant Glass Design – Beautifully crafted twisted glass sculpture, perfect for display in offices, classrooms, or as a conversation starter. Each order includes Two items in red and purple, securely packaged in a 7x2x2-inch safety hard box. Perfect Office Desk Toy – A mesmerizing and stress-relieving gadget for workplaces, encouraging curiosity and creative thinking. Hand Boilers are looped in the twisted glass sculptures containing a liquid that will "boil" as heat is transferred from your bare hand. Simply hold the large bulb end on the bottom in the palm of your hand and within minutes, your body heat from your hand will cause the liquid to rise. Once out of your hands, it takes a few minutes for the liquid to cool down. Pretty fascinating science toy and an excellent demonstration of energy transfer.The order come with purple and red of Hand boilers.