Colorolli is a modular painting tool set designed to enable children with fine motor skill impairments, special educational needs, physical disabilities, or multiple disabilities to engage in visual self-expression and joyful creation. Its aim is to simplify the creative process and make artistic activities more accessible, supporting cheerful creativity. The design process was preceded by extensive research,as well as field . The innovation of Colorolli lies in combining a modular structure with a roller-based painting mechanism. The ergonomic, interchangeable grips support various grasp types ,users to adapt the tool to their individual needs and abilities.. In addition to enabling visual expression, the system supports the development of fine motor skills, hand–eye coordination, and cognitive functions. Beyond special education contexts, Colorolli can be beneficial for preschool and early school-age children who have not yet developed a mature precision grip.