* Color-changing activity kit with markers that transform colors as kids draw * Includes an activity book with interactive pages designed for switching, revealing, and discovering * Sticker sheets included for extra decorating and layering * A compact and portable that works at home or on the go * Suitable for ages 4 and up OOLY's Switch-eroo! Color-Changing Activity Kit turns a standard coloring session into an interactive surprise experience with color-changing markers that reveal hidden designs, shift patterns, and transform drawings with every stroke, while the included activity book and sticker sheets keep the creative possibilities open. The all-in-one format makes it a strong gift pick and a compelling impulse buy, with the kind of novelty and replayability that keeps kids coming back to the page. A natural