One Standard Quartz Cuvette,Open-top type, 50 mm light-path, 17.5 mL volume: The cuvette has a fused quartz body and 2 transparent windows. It fits all standard VIS-NIR spectrophotometers (such as Shimadzu, Perkin Elmer, GE, HP, and Beckman etc.) and is designed for UV-VIS-NIR absorption applications. Parameters: Cell Material:Optical Quartz. Top Type:Open-top, Teflon lid. Light Path:50 mm. Cell Volume:17.5 mL. Outside Dimensions:45mm × 52.5mm × 12.5mm. Spectral range:190-2000 nm.