Freestanding models are independent structures or systems that do not rely on external support. They are often used in various fields, such as architecture, design, and education, to demonstrate concepts or showcase products. These models can be made from different materials and can vary in size, depending on their intended purpose. In the context of 3D printing, freestanding models can be created to represent objects or prototypes without the need for additional supports during the printing process. This allows for more intricate designs and can enhance the overall aesthetic appeal of the final product.