These Kimble® glass culture tubes feature a permanent banded ceramic label, fused to the glass, which is easily written on with marker or pencil.

• Permanent marking spots
• Borosilicate glass tubes have excellent chemical resistance against sodium leaching
• Labels are located ³/₄" from the open end and are available in a variety of colors
• All tubes have sturdy, uniform bottoms and consistent lengths

Manufactured from 51 expansion borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class B requirements.