50 x PREMIUM QUALITY RUBBER-STEEL BALLS for Paintball and Self Defense Pistols in 50 caliber. These balls are mixed with %50 Rubber and %50 Steel Powder. Once tested, you will easily recognize the hardness, heaviness of the balls and experience highly strong effects. They are made of very strong rubber and mixed with steel powder. Due to the very high quality materials used in the production, the rubber steel balls are super precise and also significantly rounder than comparable balls. One box of Rubber-Steel Balls (50 pieces) in 50 cal. weighs 165 gr. (one single piece weighs around 2,7 grams). Very good shot and hit picture used on home defense pistols with a power of 7 or 11 joules. This projectile, weighing heavier than the standard rubber balls, will be dispatched at very high speed. During the impact the ball will receive a violent shock, which will deform it slightly. The deformation is small and difficult to see with the naked eye, but present. The major advantage of this type of projectile is that, upon impact, it will cause very significant pain, but will have the advantage of not penetrating the skin, which will allow you to neutralize without injuring your attacker. You still have to aim because this type of projectile can do small damage, especially on furniture or electronic devices (such as a television, computer screen, etc.) Please note that the magnet in the pictures is not included in the item - it proves only that the balls have strong steel component.