Automatic 50ml burette made of borosilicate glass which is self-zeroing. 0.1ml resolution with permanent blue markings against a white background for easy viewing. Stopcock is pushbutton style for ease of use to deliver fluids drop by drop. Attached to the stop cock is a screw clamp for repeat titrations. This set up is a complete self supporting structure with a heavy duty base made of polyethylene which the reservoir snaps into. The advantage to a system such as this is that it is a completely closed system. Package includes:- 50ml automatic burette -Automatic stop cock with screw setting and release -500ml reservoir -Self Supporting base -Polyethylene filling Tube to connect burette to reservoir -Flexible burette tip -Reservoir screw cap with fitting for polyethylene tube.