Material: The Polystyrene 2.5-4.5ml Macro Spectrophotometry Cuvette is made of polystyrene, a plastic material with good optical properties. Volume and Dimension: The cuvette has a volume capacity of 2.5-4.5 ml, making it suitable for use with larger samples. The outside dimension of the cuvette is 12.3(L) x 12.3(W) x 45(H) mm. Wavelengths: The cuvette is usable in the range of 350 to 900 nm, making it suitable for a wide range of spectrophotometry applications. Purpose: The cuvette is designed for use in spectrophotometry, a technique for measuring the interaction of light with matter. Pack size: The cuvette comes in a pack of 200, providing a cost-effective solution for multiple measurements. The Polystyrene 3.5 ml Macro Spectrophotometry Cuvette is a tool used in spectrophotometry, which measures the interaction of light with matter. Made of polystyrene, it offers good optical properties and clarity for accurate results. With a volume capacity of 2.5-4.5 ml, it is suitable for larger samples. The cuvette can be used within the wavelength range of 350 to 900 nm, making it a versatile tool for various applications. Its compact size, measuring 12.3(L)x12.3(W)x45(H) mm, makes it easy to handle. The pack of 200 cuvettes offers a cost-effective solution for multiple measurements. Whether in a laboratory, research, or industrial setting, the Polystyrene 2.5-4.5ml Macro Spectrophotometry Cuvette is a reliable and essential tool for measuring the interaction of light with matter. Colour:Transparent Material:PS Package Contents: 200 x Polystyrene Disposable Cuvette Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.