Glass Tubes 12 Piece, Reusable Glass Straws 4 Inch Long, OD 10 mm, Thickness 1.5 mm, Industrial Borosilicate Glass Tubing for Short Cup (10mm-4IN-Clear)

Package arrived quickly in a thick cardboard box. Inside, glass tubes snugged nicely in bubble wrap with zero space for the glass to move around and break. I use these as a guide for flux core welding wire and they are unaffected by heat and don’t break if dropped. Great product and thicker glass than I’ve seen in other brands.

Got them for my kids science class. Teacher reported that not a 1 got broken but she was sure that the kids managed to drop every one of them multiple times so they must be pretty strong. If I understand my kid correctly they used for watering and other plant soil things during the project

They are fine for the price may be a bit better

Exactly what is described in the description. And was not at all to expensive

Different material than used to be. Fragile. Splintered. Cracked.

perfect OD good intake and MM wall thick for long last..

These glass tubes arrived very well packaged and all of them unbroken. I use them to blow glass and these tubes worked great for that purpose. They take heat well and don’t break and are very strong when I am done. I do believe they are borosilicate and I would highly recommended them.

Quality isn’t very good. Breaks frequently

Thought these were great until I realized almost every single one had a hairline crack in one end. Out if 12, only 3 are usable.