TecTecTec Eyecup for VPRO500 and VPRO500S

It's an eye-cup...Which is bound to get lost as it can't crew onto the eye-piece like the original eye-cup. It's functional in that it allows you to grip and turn the eyepiece to focus the rangefinder, but it pops off with little provocation. Unfortunately, there's no better alternative available at this time.

This didn't fit the VPRO 500

I should have read the only review. It fits loosely and falls off easily. I’ll probably use it but won’t take long to lose it.