The Calibrite ColorChecker Target Holder is a lightweight, adjustable holder that securely holds ColorChecker mini, standard, and passport-sized-charts. It supports any target sized 2.36 to 10.8". Two brass 1/4"-20 tripod threads allow you to use articulating arms, ball heads, and other supports to secure the holder in a variety of positions, while a flat base allows it to be used free-standing on a flat surface.