One Phineas and Ferb Wall Decals. Each set includes 39 wall decals and they range from 1.25 by 1 inch to 10.25 by 5.25 inches. Use these decals to decorate your party room and simply peel them off of the wall once the party is over and apply them to your child's bedroom or playroom wall. Phineas, Ferb, Candace, Perry the Platypus, Dr. Heinz Doofenshmirtz, Isabella, and Jeremy are featured in this set along with a trash can, tools, and phrases. Phineas and Ferb Wall Decals are the perfect way to add fun and adventure to any room.