The Zeiss Microscope Fluorescence Filter Cubes Set includes 6 different filter cubes with wavelengths of 49, 63, 50, 43, and 38. One is not labled. These filter cubes are designed specifically for use with Zeiss microscopes to enhance fluorescence imaging. The set comes in a convenient case for easy storage and organization, making it a valuable accessory for researchers and professionals in medical and laboratory settings. With the trusted ZEISS brand and precise filter settings, this set ensures high-quality imaging for a variety of applications.