Has anyone heard things about or used these platform pedals for only $24 at Amazon: Black Ops CNC Style Platform Pedals, Loose Ball - 9/16" Black. I don't see any real reviews anywhere and I'm interested in knowing how much they weigh and how thick they are.

Amazon.com: Black Ops CNC Style Platform Pedals, Loose Ball - 9/16" Black: Sports & Outdoors

Any thoughts on how they might compare with the Kona Jackshits for $19 here:
Kona Jackshit Platform Pedals 051435000203 at CambriaBike.com

Thanks

Steve