Visual Model Builder lets you create all types of models from 240 pre-drawn shapes. Simple and easy to use by kids or adults. Parts can be connected in countless patterns, allowing you to build any structure your imagination can visualize. Parts can be used and re-used. Creations can be saved to standard image formats and printed. Parts are dragged and dropped in the work area from the parts box. Parts are visible while dragging. Undo deletes last changes in groups or one piece.