2grit, like I said I didn't get to use it much yet. Only thing I did was unload a load of cedar logs off one of my trailers. It did fine for that.
The thumb is 8" x 32" and comes with a 16" stroke cylinder. It's made out of .5" AR 400 steel. Although it probably would have been fine I went over the welds and beefed them up some. I would rather start out with everything welded like I think it should be done right from the start. It cost $490 shipped to my door.
I'm fixing to put mine to work cleaning brush where I just had pines cut last fall. I should know soon how happy I'll be with it but as of now I'm pleased.
Here's the product number on E-bay that should take you to it. If you have trouble let me know and I'll try to help you find it.
390243621661
If I remember right this guys customer rating was pretty high and I think he had sold almost a 100 of these thumbs. I hope this helps you out. If you do order one of these the thumb and cylinder are shipped seperately. I was about to get excited when I got the thumb and no cylinder but it came in a couple of days later. I can get you some pics of mine if it will help you any. Just let me know.