WF 10x microscope eyepiece with a casting diameter of 30.5mm Works with microscopes equipped with a tube with a diameter of 30.5 mm, which is the standard of many stereoscopic technical microscopes. Works, among others with microscopes: • Delta Optical XTL-III and XTL-IV • TPL Advanced ICD Bino 10-160x, Advanced ICD Trino 10-160x and Biolux ICD Bino 20x - 40x - 80x • Bresser Biolux ICD Bino 20-80x and Advanced ICD 10x - 160x