What is the age range for "Caillou" toys?

The intended audience of the "Caillou" brand is preschoolers. This means that children ages 3 and up can enjoy the show and its various merchandise and products.

The show is about a four year-old boy and his adventures in everyday life. It is a critically acclaimed program, known for being designed to entertain preschoolers and engage parents. Every episode is designed with a common theme. The episode itself is divided into a few short sections that combine puppets, videos of children and animation. Throughout the episodes, the titular main character may interact with any number of friends and family members.