Set of two brand new steel bulletproof plates. Authentic live-fire bulletproof plates. Using two plates together further increases bullet resistance. I use a fiber plate on the front and these two plates stacked in the rear, using the same type. Of course, since they are made of steel, they are much better than dummies. They are also effective for tactical training. The plate carrier image is for reference only; the carrier vest is not included. - Dimensions: Approximately 300mm x 250mm - Thickness: Approximately 4mm - Weight: Approximately 2.55kg (for two plates) NIJ3A rated, which means it can stop: 9mm FMJ (FMJ stands for Full Metal Jacket) 40 S&W 357 Magnum JSP (Jacketed Soft Point) 357 SIG FMJ FN (Flat Nose) 44 Magnum SJHP (Semi Jacketed Hollow Point) from a distance of 5 ± 1 meters from the muzzle to the target.