Bathtime is fun-time for toddlers with this floating vinyl book in the " Water Wheels " series. It's shaped like a digger vehicle and cleverly weighted at its bottom so that it actually stands upright on its wheels when placed in the bath water with pages closed. All " Water Wheels " books have a strap attachment to keep them closed when they're afloat. When kids open the book, they'll find an illustrated little story about a the digger at work.