Its a Counter Height and a Privacy Window to match the base game "Gone Legit" set. These windows are BIG - be warned, they will dwarf your furniture.
HugeLunatic has also done some expansions of these - check them out http://sims2artists.com/index.php?topic=2707.0
Prices and Recolour Options
Counter height = 110 simoleons, Privacy 60 simoleons
These are repository windows and so will pick up any recolours of the originals you may have in your DLs folder.
Counter - 468
Privacy - 250
NO EPs required - BASE GAME
You will need to have the straight and diagonal version in your Downloads folder for these to work