This should be described as a 10" basin wrench. The card it's on shows it to be that. Too short to reach the nut under my sink without making the handle a problem to work with. Looks like the 12" one for the same price is no longer available. So much for progress!
We ordered this wrench thinking from the photo that the apparent teeth on the wrench head would help grip the big nut holding an undercounter sink faucet tightly in place. We'd already used, with no success, a similar but cheaper model with no ridges on the wrench head. For us, neither proved the way to success. Of course, "your mileage may vary", but do know the only thing you'll get for the extra $10 is a different gripping surface on the wrench itself. The handles were identical. A quality product, but two dings for an inflated price for nothing more than teeth/ridges on the gripping surface.