These oversized and colorful scientific tools are ideal for little hands to grasp while supporting hands-on observation and research. The jumbo test tubes have calibration marks of 25, 50, 75 and 100 ml to encourage experimentation with volume. The tubes are made of sturdy plastic and can be safely used with liquids from -12° to 93°C. The brightly colored screw caps can be wiped clean to allow labeling for a variety of activities.
Product information: Contents: Set comes complete with handy plastic stand for storage. Size: 14 cm wide. Test tubes are 15 cm high. Age: Suitable for children from 3 years