One of the bases was misaligned with the cap. Came with a drill bit, but it wasn't a standard STS bit and didn't fit in any of my US tools. Luckily I already had the right one. The rail should extend beyond the posts just a bit more or have multiple options for mounting the legs. In my setup it ended up a bit short on one end and longer on the other, but no way to move it because of the stairs and no adjustment options.