As a product expert, consider using these Easton IncrediBall Soft Practice Baseballs for training purposes. Made with a soft nylon cover and a polyurethane core, these balls provide a safer alternative to hard baseballs for players of all ages. They can be used indoors or outdoors without leaving marks on the floor. With a level 1 hardness, these balls are suitable for college/high school and youth training. This dozen pack is perfect for any baseball training sessions. However, please note that due to possible color differences on monitors, the colors on this site are for reference only. Don't hesitate to get your IncrediBall soft practice baseballs today!