7-14mm Thickness 10.8sqft Car Cell Foam Sound Proofing Insulation Deadener Mat Memory Foam Heat Sound Deadening Mat 59.06"x39.37" 12mm X 13mm Cage Nut Size: 13 x

Cage Nut Size: 13 x 12 x 9mm / 0

for GMC Sierra 1500 2014

Stable Bearing design avoids being sunk

8 x 8mm / 0

Stud length: 25mm/0

7-14mm Thickness 10.8sqft Car Cell Foam Sound Proofing Insulation Deadener Mat Memory Foam Heat Sound Deadening Mat 59.06"x39.37" 12mm X 13mm Cage Nut Size: 13 xDescription: Strong sound insulation and absorption performance, heat insulation mat. Reducing energy consumption with good performance of heat insution. Strong self viscous performance. Making sound more centralized and harmonious by changing the way of sound transmission. Installation: 1, Make insulation materials and sheet metal firm fit and play best adhesive, damping performance. 2, Do not cover the chassis wiring or air holes when you