Hand Boilers Are Looped In The Twisted Glass Sculptures Containing A Liquid That Will &Quot;Boil&Quot; 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.

Features

Vivid Demonstration Of Energy Transfer Easily Show The Scientific Principle Of Heat Energy Transforming Into Kinetic Energy As The Liquid Boils With The Warmth Of Your Hand.

Elegant Glass Craftsmanship Features A Twisted Hand-Blown Glass Design That Combines Art And Science, Making It Both Functional And Decorative.

Simple To Use, Quick Results Hold The Large Bulb At The Bottom, And Watch The Liquid Rise Within Minutes-Fascinating And Easy To Operate.

Durable And Reusable The Liquid Returns To Its Original Position After Cooling, Allowing For Repeated Use Without Additional Materials.

Perfect Blend Of Education And Entertainment Ideal As A Teaching Tool Or Fun Toy To Spark Interest In Science For Kids And Adults Alike.

Specification

Product Detail
Color	Multi-Colored
Dimensions	6.5x0.25x3
Weight	0.25