Kimble® Mark-M™ Rim Top Culture Tubes with 1-3/8-Inch Vertical Marking Label, Color-Coded

These Mark-M™ culture tubes feature a 1-3/8-inch permanent ceramic vertical marking label fused to the glass that is easily written on with marker or pencil. Labels are located 3/4-inch from the open end and are available in a variety of colors. All tubes have rim top, sturdy, uniform bottoms and consistent lengths. Writing placed on the labels of these tubes stays permanently, making them ideal for use in cell washers and water baths. Eliminate many problems resulting from smeared or illegible identification of test samples.