DOVER PUBLICATIONS-3D Coloring Book: Butterflies. Enjoy the magic of coloring in 3D! These butterflies have undergone a second metamorphosis with dazzling results! Thirty abstract images of winged beauties appear against backgrounds inspired by textile designs. Color them following the easy guidelines and create dazzling effects that will float off the page when viewed with the included 3D glasses! This package contains one coloring book and one pair of paper glasses. WARNING-CHOKING HAZARD-Small parts. Not for children under 3 years. Made in USA.