Get ready to explore the sky with Djeco's Hidden in the Sky waterpen set. Reveal hidden colours of birds, planes, balloons, and rockets with a refillable waterpen. Perfect for on-the-go fun and budding artists. Simply fill and glide the pen over the pictures to bring them to life again and again. Recommended from 18M .

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• Perfect for on-the-go fun and budding artists
• Reveal hidden colours of birds, planes, balloons, and rockets