Jumbo Test Tubes with Stand

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Primary Science: Jumbo Test Tubes with Stand Encourage inquiry-based investigation and hands-on observation with these chunky, durable test tubes. Features: 6 jumbo test tubes meas uring 150mm H and 38mm diameter. Plastic tubes that are safe at temperatures from -12 degrees to 90 degrees. Calibration marks — 25ml, 50ml, 75ml and 100ml. Different coloured lids to track experiments Sturdy stand Activity guide. 6 test tubes (each 152mm x 38mm) with lids, sturdy rack and activity guide. Show more