Glass Test Tube With Cork Stopper 16x150 mm 6-inch 20ml Pack 50, Wedding Favors

Description

glass Test Tubes are made of borosilicate glass to reduce pH change and contaminants potentially leached from soda-lime glass.
Tubes are well annealed, resistant to heat, and chemically stable. Glass tubes featuring beaded rims are fire-polished.
Culture tubes are rimless and feature walls and bottoms of uniform thickness, with flat, fire-polished ends.