The Unico Black 0.25ml Glass Cuvette (# S-90-356G) with Lid has a 10 x 1 Interior Width, 45mm Height, 0.25ml Capacity, and works with Visible Light in the 320nm-2600nm Wavelength Range.

Unico Black 0.25ml Glass Cuvette Literature:

Unico Spectrophotometer Catalog