Ear Muff Helmet Attachable, Spec:Ear Muff Item Code:Ep:23 As Per En352-3:2002 Al Ong With Helmet Ratchet(Yellow) Item Code :Pn521 As Per Is 2925:1984, Make:Karam, Venus, Fr Ontier,3M Or Similar As Per Spec Of Each Item. [ Warranty Period: 30 Months After The Date Of Deliv Ery ] ]