Hank, these came from Lee Valley. They carry several styles and sizes. I then had to bend them, so I heated them to a red hot and bent them to the slope of the chest allowing them to lay flat with the lid closed and making the lid self supporting when open. I did not do this on my personal box for several reasons, wishing I had after the fact, maybe later this year I'll pull the top board lose and redo the hinge arrangement on mine, or maybe not. I have to say I like the hinge arrangement on this one better. So bending them wasn't to bad, the only issue was I set off the fire alarm in the house and scared the crap out of the cats not mention I sure wasn't expecting it. Thank goodness Mona wasn't home I would have had some explaining to do.