Spectroscopy Cell, Ultra-Micro with Pipette Tips, Quartz SUPRASIL, Light Path: 5.0mm, Center Height: 15mm, Outside Dim.: 45H x 12.5W x 12.5D mm, Aperture: 0.8mm, Chamber Volume: 2.5 mL, and Filling Volume: 5.0 mL. All cells contain two clear windows.