This is a brand new graduated mechanical stage attachment for standard slides. It fits DIN standard compound microscopes including AmScope M200, M500, B100 series microscopes. It has a center mount screw with two locating pins at 1-1/4" (33mm) apart. Its extended length is 6-1/4" (160mm) and width 5-1/4" (135mm).

Features & Specifications:

• Two Locating Pins: 1-1/4" (33mm) apart
• Extended Length: 6-1/4" (160mm)
• Extended Width: 5-1/4" (135mm)
• Unbeatable Low Price