Looking for the most durable plastic training baseballs on the market? The Elite Sportz Gear 48-Pack of Limited Flight Practice Baseballs is built for heavy hitters. Made from a flexible, non-brittle plastic that compresses on impact, these hollow training balls will not shatter or break like traditional hard plastic balls developed in the 1970s. Weighing 74 grams with a standard 2.8" baseball size, they offer true-to-flight wind resistance and instant swing feedback. Perfect for indoor drills, backyard batting cages, and on-field team practice!