This is a pair of brand-new eye guards that fit all AmScope SW, SM, and ZM series stereo microscopes. Eye guards are used to block ambient stray light, making images more clear when using your microscope. They fit any eyepieces with 33 - 35mm O.D. and are foldable for different applications. They are also made with a softer rubber making it much more comfortable when viewing specimens for long periods of time.

Features & Specifications :

• Eye guards for 33-35mm O.D. Eyepieces
• Fitting AmScope SW, SM and ZM Series Stereo Microscopes
• Warranty: 1 Year