*Material of Shell:ABS
*Material of Cushion:PU Foam Soft Cushion with High-Density Sponge
*Certification:CE EN352-1:2002
*Noise Reduction Coefficient:NRR 20dB
*Usage:Foldable for Easy Storage
*Packing:1set / Color Box
50 sets / Carton,12 / 10kg,46 x 31 x 61cm