A quality general-purpose tube. Ideal for pH testing with test strips or indicators. Great for holding small specimens.
Economical enough to be disposable
Remember not to hold the open end of any test tube toward yourself or someone else. Wear safety glasses. Do not use plastic tubes with high heat or strong chemicals.
We are using them for a homeschool class. They are just want we wanted.
Just what we were looking for at a great price. I looked in stores, used, and other supplies and HST had the best price yet again. Fast shipping too.