... NIJ III,IV stand alone made of Kevlar or PE Hight Quatlity Bullet Proof Plate, NIJ IV, M2 AP, standa alone performance ... Single curve, Kevlar & Ceramic composite chest shield 250mm*300 Bullet Proof PlateMaterial: Kelvar/ AL2O3 (Aluminum Oxide) ceramicProtect Level: USA NIJ Standard ... .We'd like to provide small samples for you testing. Or invite you to our Ballistic Lab to test by yourself ...