PRO Premium Black Sound Deadening 3mm Sheets – 2.1m² Box of high-quality automotive sound deadening insulation. Includes 12 sheets (35cm x 50cm) with a thickness of 3mm, covering approximately 2.1m². Ideal for campervans, cars, or car audio installations to reduce vibration and road noise. Used these on my van and ordered too many - unopened box. Payed £80
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