DGK Color Tools DKK 5" x 7" Set of 2 White Balance and Color Calibration Charts with 12% and 18% Gray - Includes Frame Stand and User Guide Includes 2 DKK Cards - Each with Precision 12% and 18% Gray reference for white balance plus 18-Color patches for superior digital color correction Array of 18 color patches with natural, chromatic, primary and gray scale colors, arranged in three rows. Convenient 5" x 7'" (127 x 178 mm) double-sided screen print construction, archival quality acid-free materials and full user guide Includes convenient paper frame folder to protect the card surface and allow easy tabletop display during use. Card slides into folder from the side. Detailed instructions included for Picasa , Photoshop Lightroom , Photoshop Elements and Photoshop