The Original Soft Medicine Ball – in a smaller size! Dynamax Mini medicine balls; range from 2 lbs. to 14 lbs., and are easy to catch and throw – perfect for single-arm work, sport specific drills or youth training; All balls are 10″ in diameter, moisture resistant, and are made from 70% post-consumer recycled materials. Our trade secret and craftsmanship guarantee that each ball, regardless of weight, has a friendly fee and will absorb high velocity impact. Soft shell construction and balanced, uniform weight make it easy to handle. Filler material provides even weight distribution and helps maintain shape.