StonyLab Borosilicate Glass Round Bottom Test Tubes, 20mm OD X 150mm Length (Pack of 20)

My purchase arrived on time and packed well for the shipping. My purchase works as advertised and is built well.

Appears high quality and packed carefully.

The test tubes are high quality and perfect size. One tube was broken but all others were great.

Tubes were packed great, nothing broken. Although I was expecting, due to the 12.7 mm ID and 15mm OD, that the walls would be around 2 to 2.3mm, but, they are 1mm, well the ten that I've checked so far.

We were very pleased with the glass tubes

I ordered these for a craft project. They were just what I wanted and arrived in perfect condition.

Was the right size

It works fine, but the quality isn’t great. The glass feels cheap and the clarity is quite bad. The one on the left is Stonylab and the one on the right is Pyrex. To highlight the difference i am shining a light at an angle.

Strong and well packaged, just what I needed.

Produit conforme à la description.

Buen producto, lamentablemente llegaron 3 rotos. No se si fue culpa de quien reparte o del vendedor.

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I like my product that's all