I have yet to deploy the weather balloon you provided but I very much appeciate the prompt servive over the phone.

Great product at a fair price. Quick shipping.

I love this store for these products.
I had founded exactly what i need and without bad surprise.
I will be purchase again soon.

The package and balloons came in great condition and were packaged safely. I even received my package in about day which is much quicker than I thought! It was excellent and comforting getting shipping updates every step along the way. I WILL be ordering from scientific sales from now on. Thank you for your quick response(s) and very timely feedback!

I was considering the purchase of 4 weather balloons and wanted to make sure they were right for my application. I emailed sales, and three days later had no response. I called sales and had a very knowledgeable person answer all my questions. I ended up ordering the balloons, but it would have been nice to get some sort of email response.