I got a set of these from Eric a few weeks ago and I thought I would post up some info. on them. They are a simple design and very easy to install. They are very solid when mounted to the rail and the wingnuts hold the hi-lift very snug. I especially like the design because I use my truck for campling and it keeps the jack close to the rail without the base contacting the bedside. After a couple of trail runs these were still very solid and didn't seem to loosen at all. Overall I'm very happy with these and Eric is offering them for $50 plus $11 USPS shipping. Here are a couple of photos, thanks Eric!