Crayola 12 Changeables Super Tips -
Crayola 'changeables' super tips are a fun way of creating fabulous effects. Laydown one of the bright colours, use the colour changer pen over the top, and as if by magic watch a cool new colour appear! Write an invisible message with the colour changer pen. Reveal it by colouring over with a 'changeables' pen.
10016431 - Crayola -