These KIMBLE® Mark-M ™ glass culture tubes feature a permanent vertical ceramic label, fused to the glass, which is easily written on with marker or pencil.
Features & Benefits
Manufactured from borosilicate glass 5.1
Borosilicate glass tubes have excellent chemical resistance against sodium leaching
Permanent ceramic 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