The Customized Four-Wheeler Modular Assembly Walkers are designed as puzzle pieces. These help the children to possess critical skills, for example, complex problem solving and creativity in the most challenging and fun manner. They are provided in different models, which can be effectively used for particular age group children. By availing these walkers, the parents can save huge amount by supplanting digital children gadgets with these mechanical toys. Our Customized Four-Wheeler Modular Assembly Walkers deliver an entirely different approach to tricycling experience that implies these walkers are completely transformable and reconfigurable, which the kids can do by themselves when they outgrow with the current designed model.