Training for Engagement with T4E .43 caliber paintball markers offers the ultimate in force on force simulation or a better mag-fed recreational and sporting paintball experience. All T4E .43 caliber markers are also able to shoot .43 caliber rubber ball or powder ball ammo as well. Rubber ball ammo is perfect for departmental training application and the huge 8,000 count pack is up for the task of getting your team in the training arena. T4E rubber ball ammo can be reused. Just wash off all dirt and debris and inspect for damage. If there are not chunks missing or cracks in the ball, it's safe to reuse in your T4E training and simulation markers.