A glass stirring rod, glass rod, or stir rod is a piece of laboratory equipment used to mix chemicals and liquids for laboratoy purposes. Thay are usually made of solid glass, about the thickness and slightly longer than a drinking straw, with rounded ends.

Volumetric Flask is a piece of laboratory apparatus, a type of laboratory flask, calibrated to contain a precise volume at a certain temperature. Volumetric flasks are used for precise dilutions and preparation of standard solutions.

A volumetric pipette or bulb pipette are used for extremely accurate measurement of a volume of a solution. These Class A pipettes have a large bulb with a long narrow tube above with a single graduation mark as it is calibrated for a single specific volume.