Use this Colortrak™ Caddy for dimensional hair coloring, such as multi-colored trends like rainbow hair, criss-cross color melts, fantasy hair and metallic masterpieces. This caddy includes three color bowls with measurement markings along with three color brushes with non-slip handles. The bowls lock into the caddy and easily spins around as needed. To assemble Colortrak Caddy: Snap bowls on center pole using the tabs for alignment. Press bowls down firmly. Rotate black locking device to lock over edge of bowls.