B805 Helmet Impact Tester Protective Material by HPI, Austria During Impact testing We need low friction resistance, this is why the 805 Helmet Impact Tester has been specially designed. This test instrument complies with NIJ0106.01 Standard. Features It has low friction system.Head form D.O.T Mag K1A size C calibrated to 5 kgIntegrated levelRear end shock absorberDouble rail system Specification L/W/H: 1400 x 200 x 350 mmWeight: approx. 40 kg