These fans look GREAT. It has a glossy paint coating, nine curved bladed which are dark and tinted, so they are only semi transparent. I've never seen a finish like that before, I like it a lot. Using a unique long-life sleeve bearing fan, the R4 series offers long life rating of 50,000 hours. R4 series fans perform at a maximum of 69CFM at 2000RPM. Alternatively Amazon is listing this for the same price without the $3 rebate.