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Finger Boiler Pen  

Finger Boiler Pen

Finger boiler Pen   - High-Tech Finger boiler Pens are Hot, Hot, Hot...
Heat from your finger causes the colored liquid in the lower viewing chamber to "boil" and rise, filling the bubble on top.
A fascinating demonstration of the laws of heat expansion.
Shake it down and do it again! It's science at your fingertips. The main ingredient is methanol. NOTE: shape of pen may very from the picture!   Blue ink only.
Age s 12 and up
  To See More   Hand Boilers .


 
 

Finger Boiler Pen

Item#
3819125     Our Price: $ 6.95
OUT OF STOCK
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Finger Boiler Pen
Finger Boiler Pen  
Item# 3819125
Our Price: $ 6.95
OUT OF STOCK
Email Me When Available

 

Description & Details
Finger boiler Pen   - High-Tech Finger boiler Pens are Hot, Hot, Hot...
Heat from your finger causes the colored liquid in the lower viewing chamber to "boil" and rise, filling the bubble on top.
A fascinating demonstration of the laws of heat expansion.
Shake it down and do it again! It's science at your fingertips. The main ingredient is methanol. NOTE: shape of pen may very from the picture!   Blue ink only.
Age s 12 and up
  To See More   Hand Boilers .