FoldTier 6 Pcs Borosilicate Glass Tube 12mm OD 2mm Thick Glass Blowing Tubes with Cleaning Brush (Clear,6 Inch)

Very thick, great quality! I use these as a stem for soap dispensers to minimize the amount of plastic coming into contact with our product products.

They do not break easily and none were broken when they came in. They were a little thin but it hasn't been a problem for me. Don't let the black spots build up because it will cause cracks and catch fire while you are using them.

The 6 piece Borosilicate Glass Tube were and exactly as the description stated and as the positive customer reviews commented. They are heat resistant, not shattering or cracking when put in a microwave oven and are great for using as a straw in ice cold smoothies, slushies and other cold beverages. They are very securely packaged and well priced.

I ordered a 5-pack of clear 4 inch glass tubes and was very happy with the product. The price was excellent for the value. They are thick, durable, and good quality. The cleaning brush/tool that was included is not very strong/long/affective, but it was a nice touch and would be excellent if it was made for the length and width of the tubes I was purchasing.

We all know what we're buying these for. I got the 12" bc I'm boujee and it feels all Gatsby. I've gotten the 1.4 mm thick before from another seller and I like them but they break so easy, especially after repeated heating and cooling. THIS bitch seems indestructible. I put a silicone straw tip on it and it's the best. Delivered very well packaged overnight (I'm in a major distribution area, tho). Probably going to buy another set just to have stock. Bonus: they color blend VERY well for glass blowing so they're actually amazing for all their actual uses. May double as effective PPE if you're of the trap set. But probably don't.

Purchased a few times. Last order had 2 cracked.no issues other than that.

Thick enough to take heavy heat. Come packaged very well in cardboard. No complaints from me.

I honestly think these are unbreakable... I put some pressure on mine and they still going strong

Für Vaporizer 2con passen sehr gut. Hitzebeständige borosilikatglasrohr.