Dynalon 302235-0002 Polymethyl Methacrylate 4.5mL UV-VIS Range Macro Cuvette For Spectrophotometers, 10mm Light Path (Case of 500) Dimensions: 12.5 x 12.5 x 45mm; window: 10 x 35mm; light path: 10mm Material: polymethyl methacrylate (PMMA) Provides an excellent degree of light transmission throughout the VIS-UV spectral range from 285nm to 750nm Minimum filling volume: 2.5mL; maximum filling volume: 4.5mL Ideal for scanning, enzyme rate reactions (with small delta absorbances), and standard curve determinations