Budding scientists will go mad over the Primary Science Jumbo Test Tubes with Stand. Designed for ages 3 years and older, these durable test tubes made specifically for hands-on learning. Features sturdy rack, different-color lids (to help track experiments), and calibration marks-25, 50, 75 and 100 ml. Hand wash. Six plastic tubes measure 6' H x 1' in diameter. Includes Activity Guide.
