Here's a very special louver, where each cell has a cone shape located in the center of the cell. The diameter is 1" while the cell size is 1 5/16". The dimensions of this louver is 23 3/4" x 47 3/4". This louver comes standard in specular silver. The angle of the light is 90 degrees. Besides being decorative, it is very easy to install. Options available: 23 3/4" x 23 7/8", 11 3/4" x 47 3/4" specular gold or silver. Minimum is 20pcs to an order. Please call for special pricing and freight charges.