1 level:NIJ III 2.weight:2.3Kg 3.Material:PE,Al2O3 1.DescriptionAlumina ... . MaterialSizeBulletproof area:Bulletproof levelThicknessWeightPE, ceramic plate250mm*300mm 750 square centimeterNIJ III 18mm2.0Kg Resist: M16, M14 and AK47 Testing Report Sample ...