Standard: EN397 CE Material: HDPE Light weight, Good strength, Good toughness Protecting ability: Anti-puncture, Anti-shock Standard: EN397 CEMaterial: HDPELight weight, Good strength, Good toughnessStandard: EN397 CEMaterial: HDPELight weight, Good strength, Good toughnessProtecting ability: Anti-puncture, Anti-shockAdjust manner: A: plug, B: ratchet, auto-lockingFix head suspension: 8 pointTerm ...