Hard throwing balls for indoor training for the javelin throw and discus throw. Colors and sizes vary based on weight, Lighter balls are 1 inch; heavier balls are up to 3 inches in diameter.
Need a softer throwing ball? View Plyo-Soft Throwing Balls
The Shot Put and Discus Throw Manual has over 200 pages of incredible content; from technique to pre-designed workouts - this book has everything you need as a THROWS COACH!