DescriptionThese photography reference cards comes with white, black and grey colors for each. These cards can be a great helper in your adjustment of parameters like exposure and white balance. Light in weight and extremely portable for you to take to any places. Good workmanship, these cards for photography would not easily fade over time.Features-Color:As shown. -Material:Acrylic -Size:8.60X5.40X0.10cm/3.38X2.12X0.04in -These white gray cards are great for DSLR, film, white balance, exposure metering. -These white balance cards would be a great helper in your adjustment of parameters like exposure and white balance. -Made of premium acrylic materials, being safe and durable for long time to use, these photo grey cards can be used rest assured. -Good workmanship, will not easy to fade, deform, or break after repeated times using, these gray cards for photography offer you good using feeling. -Each grey cards includes a gray, black, white colored card and carrying cord, proper for professional photography.