Sound Deadening Specifications: Material: Aluminum & Foam Features: car heat / sound insulation Function: Car sound insulation Temperature Rating: 200 Degrees nominal Outer Material: 99.4% pure polished aluminum reinforced facing Reinforced / Crush Resistant: Yes Mildew & Mold Resistant: Yes Water resistant: Yes Non-toxic: Yes -Option 1: 2Pcs Car Sound Deadener Wheel Rollers -Option 2: 1Roll 2M×1M Sound Deadening(5mm cotton) -Option 3: 1Roll 2M×1M Sound Deadening(5mm cotton) + Rollers .
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