Specifications :MATERIAL: PolycarbonateSIZE: 900*500*3.5 MmUSE: anti-vandalWEIGHT: 2.83 KGANTI-IMPACT: 147 JoulesANTI-PENETRATION: 20 JoulesAnti-vandal shields are used in almost every country by police forces and are produced by many companies. They are often used in conjunction with a cane.Most va..