This set of 7 graduated cylinders comes in the following calibrations: 10ml, 25ml, 50ml, 100ml, 250ml, 500ml and 1 litre capacities. Cylinders made of durable polypropylene and the cylinders come graduated. Each cylinder a single piece, autoclavable, graduated and with excellent contact clarity. The base provides good stability as well as preventing them from tipping over easily. Cylinders are a must have in every science lab and primary school. Students can practise with volume relationships. Use the cylinders to accurately measure a liquid or for other science and chemistry experiments that involve liquids. Furthermore the cylinders are very durable andare almost unbreakable.