Standard EN397 CE Material: LDPE Standard:  EN397      CE    Material:    LDPEProtecting ability:   Anti-puncture,  Anti-shockAdjust manner: A:   ratchet type, B: plug type, C: auto-locking typeFix head suspension: 8 pointTerm of use: one yearWeight: (shell weight + head suspension weight)

               A: 300g+89g       B: 300g+100g        C: 300g+96g