Make yourself fit and ready before the game with the Training Water Polo Ball by Mikasa Sports - Size 4, Black/Yellow - 1. 7 Lbs. This sports accessory has unique Black buffed rubber with Yellow ridges for a superior, non-slip grip. This heavy weight training ball has a scale of 1. 7 lbs. and is suitable for use in both wet and dry places. So, what are you waiting for? Train young water polo enthusiasts with the Training Water Polo Ball by Mikasa Sports - Size 4, Black/Yellow - 1. 7 Lbs. today!