Great vapor pressure demonstration!
When the handboiler is held in your hand, liquid quickly travels from the bottom bulb to the top along with numerous bubbles, giving the appearance of boiling.  For this reason the Hand boiler is also called “Love Meter”; if someone can make a fluid boil with just the heat of her/his hands they must truly be exceptional lovers!
 These new and improved hand-boilers are from a thicker glass and less likely to break. Colors and styles may vary.

Size:5.6cm X 5.6cm X 18.7cm

Weight: 0.061 Kg
Material: Glass
Colour:Random color
Condition: Brand new