Phineas and Ferb Coloring Book Set with Twistables Crayons Delight your Phineas and Ferb fans with this Phineas and Ferb Coloring and Activity book & Twistable Crayons. Includes package of full sized Crayola Twistables crayons. Games, puzzles, mazes and coloring fun with Phineas and Ferb characters. Book measures approximately 8" x 10.75" and has about 90 pages. Great gift for your favorite Phineas and Ferb enthusiast! This coloring and activity set will provide many hours of fun!