Overview Similar Products –> Product Description Chunky, durable test tubes put serious science safely within reach for young students! Encourages inquiry-based investigation and hands-on observation Supports serious science experiments – plastic tubes are safe at temperatures from 10deg -200deg F and feature calibration marks (25, 50, 75 and 100 ml) Includes: 6 test tubes with different coloured lids (to track experiments) Sturdy Rack Activity Guide Hand wash Tubes measure 6’H x 1.5′ in diameter Recommended for Ages 3+ Product Videos Custom Field Product Reviews Write a Review Write a Review LEARNING RESOURCES JUMBO TEST TUBES Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *