You can also use the baskets as a rail...Baskets all the way.
You can move 'em.
You can shake the ashes out.
You can use one, two, three, or four of them.
They make it easy to light used coals, since the coals aren't scattered about on the charcoal grate.
An aluminum half size steam table type pan fits perfectly between them.
They keep the coals/heat off the sides of the bowl.
They breathe well.
You can flip one (or more) and put another, with lit coals, on top to get a screaming hot sear.
And you can flip them to make a fast and loose snake.
If you look closely, its two pieces. the vented L shaped piece and the curved portion that wraps around it. There are two tabs that hold it together on either side. The tabs are punched out so it cannot be disassembled, but I flattened these on one of my baskets so that I can take it apart and put it back together. The vented L piece works great by itself as a charcoal rail.