Arrived in one piece which is more than I can say about the last one. Confirmed it holds hot water.

I’ve been using this graphite electrode holder in electrochemistry experiments. It’s easy to set up, holds samples securely, and gives stable, consistent readings. The build feels solid and it works reliably in our lab setup without any issues.

This Ag/AgCl reference electrode works well for our electrochemical experiments. The signal is stable and consistent, and it integrates easily into standard cells thanks to its 6 mm design.

Preparation is straightforward—just fill with KCl solution before use—and maintenance is also simple. Overall, it provides reliable performance for routine measurements and is good value for lab use.

We’ve been using the StonyFilm Lab Sealing Film in our daily lab work, and it has performed very well so far. The stretchability is impressive — it really does feel more flexible than other sealing films we’ve used, making it easy to wrap around different types of lab containers and ensure a tight seal.

It sticks well without being too difficult to adjust, which saves time during experiments. We also noticed it provides reliable protection against evaporation and contamination, especially when storing samples for longer periods.

The material feels durable and doesn’t tear easily, even when stretched significantly. It has also held up well in contact with common lab chemicals, which gives us more confidence when using it in different applications.

Overall, a very practical and reliable sealing film for everyday laboratory work. We will continue to use it in our lab.

The test tubes are perfect got them for my ants to start growing and they work amazing

Compact, works great and happy to have in my lab at such a competitive price. Only comment is it is a little on the nosier end.

This is just what I needed at just the right price. I was further delighted by the swift delivery of my order. Great job, StonyLab!

Very happy with this freeze dryer. It was easy to set up, runs smoothly, and dries samples efficiently. The vacuum pump works well, and the cold trap cools down quickly. Great size for our lab and has been reliable so far. Definitely a good purchase!

I was initially a bit concerned after seeing some reviews and reached out to customer service for clarification. They explained that graphite is a brittle material with a layered internal structure, which means it has lower impact resistance and can crack if exposed to uneven force or over-tightening.

After understanding this, I decided to proceed and use it carefully. So far, I’ve used it several times in my setup and it has been working well without any issues. As long as it’s handled properly and not over-stressed mechanically, it performs reliably.

Overall, I’m satisfied with the product and it meets my expectations for lab use.

I ordered the 16 mm size, and my 16 mm test tubes fit perfectly in it. Delivery was quick, and my orders have always been packaged well. I have never had any damage during shipping.

This beaker set includes some sizes I didn't have. I really like the foam package they come in, and use it to store them between uses. The quality is good, and Stonylab is a reliable company.

Works great and feels well built. The heating and stirring functions are stable and accurate. Exactly what I was looking for.

Very easy to operate, even for beginners. It fits standard round-bottom flasks perfectly and significantly improves the efficiency of my routine lab work.

Works really well for me. Perfect for my personal lab setup. Heats up nicely. Super easy to use, and the display is clear. Just be careful with the probe! it doesn't handle strong acids or corrosive liquids.