Works as advertised - Leupold Mark 4 Rifle Scope / Spotting Scope Tenebraex ARD Anti-Reflection Devices

The outside diameter of this product was slightly smaller than the outside diameter of my scope (Leupold Mark IV) so my slip-on flip-up scope cover no longer snugly fit on the end of my scope. I had to wrap a few layers of black electrical tape around this product to make up the diameter difference.

The product was also a black fiberglass looking material so it didn't blend with the glossy metal finish of the rest of the weapon. Overall the product works as described and I'd still recommend it.
Pros: short, light, causes no noticeable "tint" in scope view.
Cons: diameter discrepancy, finish.

This review was written in the old system and had content requirements that are different than reviews written today.