When you add water to the black and white pictures in this book using the brush included, the world below the waves fills with beautiful colours. Once the water dries, the colour magically vanishes... so you can keep painting it and bringing the colours back. From clownfish and squid to sharks and whales, the sturdy board pages are always waiting for you to fill them with colour again. - Chunky board book with 6 reusable double-page spreads - Just add water to bring the black and white pictures magically to life - Let it dry and the colours disappear to enjoy it all over again - Ideal mess-free, on the go activity - Suitable for age 3 years and up