Ferrino,
The aluminum is 3/8 inch trim used for tile from my local Home Depot store. It is not a solid piece as the one illustrated on your ebay link. The nice thing about wood is that it matched the depth of the original pad. If you wanted to have a veneer of suede or leather, you could use the following pattern (illustrated below) and simply glue the fabric/leather to the wood. I would use oak, which also comes in 3/8 in.
