B&W 77mm 3.0 ND MRC 110 Filter (10 stops)
Hoya 77mm Pro 1D 16x ND (4 stops)
both of these are in perfect condition- the B&W used only a few times and the Hoya was never used... additional info can be found in the links below.
these are great for long exposures with lenses like the 17-40, 16-35, 24-105...
price = $85. For both filters - price includes shipping and pp. (great deal)