Color Checker and Gray Card

Color Checker and Gray Card with waterproof resin coating (75mm x 128mm)

Using Colorcheck

Colour checker card hi-res stock photography and images - Alamy

Manual white balance test card for K-3

Kodak 18% Gray Card (Color Card-Color checker)-INTEKE INSTRUMENT

ColorChecker® Grayscale Reference Card

So I needed a Case for my color checker. : r/photogrammetry

Keldan ships Color Checker card

Is There a Difference Between Color Temperature and White Balance?

Xrite ColorChecker Passport In-Depth Review - Improve Photography

ColorChecker Passport Video White Balance Card