About
We are passionate about STEM for junior high and high school kids. A lot of what we do is related to making, programming, experimenting, calculating and learning from the results. The goal is to learn from the projects while having fun.
All Feedback (2,293)
- mordred377 (488)- Feedback left by buyer.More than a year agoVerified purchaseGood buyer, prompt payment, valued customer, highly recommended.
- o***o (526)- Feedback left by buyer.More than a year agoVerified purchaseGreat seller. Great communication. Item was super delayed with shipping and seller was willing to send another one. He also said to keep the first one. eBay needs more sellers like this.
- md-tech2011 (1485)- Feedback left by buyer.More than a year agoVerified purchaseGreat communication. A pleasure to do business with.
- l***o (1106)- Feedback left by buyer.More than a year agoVerified purchasePerfect Transaction, Quick Delivery, A+A+A+A+A+A+
- euk2003 (962)- Feedback left by buyer.Past 6 monthsVerified purchaseExcellent buyer! Thank you for choosing us for your ring!
- 4phil-bush (5323)- Feedback left by buyer.Past 6 monthsVerified purchaseGood buyer, prompt payment, valued customer, highly recommended.
Reviews (27)
06 Dec, 2016
Great flask
These are very heavy walled flasks and can clearly handle the vacuum.
28 Apr, 2017
HIghly efficient condenser
If you are distilling with high power you need large surface area in the condenser. The advantage of this design is the double wall construction. It improves efficiency in a compact design.
09 Jul, 2017
Great Price and Poor Quality
I use a lot of 2000ml round bottom flasks and have purchased all major brands.
Half of the flasks I ordered had small defects that looked like bubbles close to the surface of the glass that had opened up. I use flasks for vacuum distillation, so could not use the defective ones to guard against implosion.
The price is great and if your application does not need vacuum these might just be the thing you need.