SpecificationsColad Self Adhesive Noise Absorbing Sheets are designed to be applied to the interior sheets metal of car doors, trunk, carroofs etc. These sheets are mode of 100% heat resistant bitumen. Excellent noise and vibration reduction properties. Colad Noise Absorbing Sheets are repaintable. Thickness: 2.2 mm. Per box of 8 sheets of 250 mm x 500 mm.