The DGK Color Tools WDKK: This is the fully waterproof version of our popular DKK and DKC-Pro Multifunction Color Charts. The WDKK is specially designed for all-weather, extreme conditions, and underwater use. Reverse side has warm card which for accurate for underwater white balance. The complete kit includes 1 sturdy double-sided 5" x 7" (126 x 200 x 1mm) card, stand, instructions. This double-sided card features two essential photographer's tools: Front: 18 reference color targets printed with permanent uV inks. Includes 12% and 18% gray. The reference color patches facilitate white balance and exposure for film and digital photography. Used for setup, profiling, adjustment of color scanners, cameras, digital video, printers, and display systems. Back: Warm card improves skin tones, eliminates electronic look. Ensures precision warm white balance setting and shot-to-shot consistency of of multiple cameras. Underwater White balance. Designed to be 100% waterproof: The WDKK is specially designed for all-weather and underwater use. The colors are permanently embedded and ultraviolet-cured for a highly durable, accurate, and color-fast card. Perfect for underwater photography and video, as well as water sports, winter sports, and extreme sports. What's in the box: Kit includes one double-sided heavyweight plastic card, hands-free frame stand, carry strap, and instructions. Similar in size to the ipad mini, measures 7.8 x 5.3 x .030 inches (200 x 135 x 1 mm). Designed in Boston, Massachusetts and made in USA:DGK products are engineered for today's HD camcorders, digital video SLR cameras, and high definition digital still cameras. Proudly made in USA.