POCKET SHIKAKU! TRAVEL SIZE MATH CHALLENGE PUZZLE BOOK FROM POCKET NINJA!Convenient Travel size book with 300 Fun & Challenging Puzzles to keep you entertained for hours! 6 Puzzles per page in light-weight book. Perfect for every Gamer on the Go! All Puzzles come complete with solutions.5.5" x 8.5" Paperback with Gloss cover.