Graduated cylinders are used to measure liquid volumes. they're more accurate than flasks or beakers. Graduated cylinders square measure tall, narrow, and spherical vessels marked with graduations. manufactured from glass or plastic, the larger graduated cylinders are typically manufactured from plastic that's light-weight and can not break like glass. Graduated cylinders have a solid base or foot for stability and a spout to facilitate gushing out the contents. as a result of they're somewhat unsteady, some glass cylinders even have a plastic bumper or ring to assist stop accidental breakage if the cylinder falls over. Mixing (graduated) cylinders have ground glass joints rather than a spout or are closed with a stopper. These are usually used to build dilutions.