I bought one of the SLK plexi WindBlox on Ebay. Just installed it and I think its great. The product fits well and attaches easily with straps that have velcro. $71.00 was a heck of deal vs. the $350.00 Porsche wanted for my Boxster. To me it looks just as good as the factory units. I bought the storage case for it, but I don't think that was worth another $15.00. The one's in the guys picture showed metal fasteners, but I like the velcro ones he sent a lot better. The guy offers tinted versions as well for folks in real sunny areas.