2.2Kg/pc (20mm), Stand Alone meets level III plus AK47 MSC (M193, M80, and plus AK47 MSC) 
2.8Kg/pc (25mm), Stand Alone meets Level IV M2 AP 2 shots
*M193 is 5.56x45@990m/s, M80 is 7.62x51NATO ball@847m/s, AK47MSC is 7.62x39MSC@710m/s 
*All of the levels are according to US NIJ standard 0101.04 and level III is not included AK47 MSC. 

Optional Sizes: 10"x12" (25cmx30cm) or make it by customer's request
biggest size: 1.2*1.6m