Tips: If you receive Maccx products cracked during transit, please contact us for refund.

These glass test tubes with black screw caps are made of Borosilicate glass material, cap in Bakelite material mounted with silicon rubber liner, could withstand 121℃ high temperature autoclave sterilization.

Used for mixing heating and/or holding small quantities of chemicals for assays, as well as other laboratory experiments.

Widely used in daily use at home, like storage of seasonings, seeds, tiny plants, candy, etc.

If you have any questions or concern, welcome to contact us, we will give you feedback as soon as possible.