Purchased this product as my original Oakley Probation lens had a lot of dried salt from years at the beach.

Shipping: Product fulfilled by Amazon, arrived with two days

Installation: Between the nose pads there's a screw that puts tension on the top and bottom of the frames which keeps the lens in place. Simply remove the screw, spread frame and slowly work the frames out. To replace, same aforementioned steps but in reverse.

Product: Good news first. This lens fits the Probation frame and is a color match to the original Oakley product. I provided a picture where you can see the original on top and Walleva replacement on the bottom. Walleva is slightly thinner than Oakley and I noticed that my eyes are more visible when wearing the sunglasses.

Overall: Good replacement, but I wish they were as thick as the original.