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Specifications
- Subject: Physics
- Model Number: air pressure
- Brand Name: MAGICAL SCIENCE
wholesale physics science homemade Magdeburg hemispheres DIY material,home school educational kit for kids students,
2.14
$
26
orders
/
7
reviews
Price history
- for 3 month
- for half a year
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Customer Reviews
D***n
August 8, 2020
I've tried two now and this is far better than the other one i got. the valve is brilliant. I'm very happy. it takes 10kg of force to open it!
Anonymous
June 17, 2020
work very well, suitable for small group instruction, not classroom instruction (but knew that in advance because of size - no negative!)
Anonymous