It's amazing how I can have hundreds of dollars of barstock sitting on the shelf and not find the sizes I need for the engine I'm working on. So I needed some more material. After looking at many a online metals vendor, I ended up purchasing from Online Metals (OM). I order specifically what I needed but I had a 25% off coupon code, so of course I needed MORE METAL!!! Anyways, OM has these "protoboxes" which are just drops of materials from their barstock. You know what type of metal you're getting, but have no idea what shapes. I took a chance on buying two of them fully knowing it may suck. This following is what I ended up with: First I bought the 20lb cold rolled pack. It had a lot of tubing in it and a couple of pieces of rectangular stock. Overall I'm not too impressed with this one. The DOM tubing definitely has some usefullness. But the thin walled tubing doesn't have much of a use for me. Oh well, $20 down the drain. The second pack was the 20lb brass pack. This one was excellent. Mostly it was roundstocks about 1 foot long with a couple of small rectangular stocks as well. The largest piece as 1-1/2" diameter! This was well worth the $55 price. Remember, if you go this route, your experience may/will be different. ...Ved.