Wire-o bound hardcover. 6-3/8″ wide x 8-1/2″ high (16.2 cm wide x 21.6 cm high).64 pages (20 scratch-off 20 illustrated, 20 sketch pages. Shrink-wrapped with a wooden stylus.White outlines on black scratch off pages create a fun way for younger children (ages 5 and up) to trace illustrations, revealing magnifient colors beneath. Welcome to the world of techno-friends, where youll find robots that can DJ, time travel, explore the sea floor, or tell jokes! Scratch away the white outlines to bring each amazing automaton to life in swirling colors or shiny foil. Have megabytes of fun drawing and designing your own robots!